Answer:
D) Direct Contact
Why?
In this situation someone having a cold, and using a facial tissue can result in someone else throwing or moving the facial tissue away. Thus, the bacteria from the tissue touches the person. Either resulting in the person having the same cold or an advanced cold.
Explanation:
Hope this helps y'all!! :> Have a fantastic day!
Human skin cells, hair, clothing, and bedding are typical hospital contaminants.Fomites are particularly linked to hospital-acquired infections (HAIs), as they can act as a conduit for the transmission of germs from one patient to anothe.Neckties and stethoscopes are typical symbols of healthcare professionals.
Which of the following is a Fomite?
When an infected individual sneezes or coughs, infectious droplets are released into the air and cause indirect contact diseases to spread.People who are healthy run the danger of getting sick if they inhale the infectious droplets or if the contaminated droplets get in their eyes, nose, or mouth. Fomites include things like infected tools, garments, buckets, bowls, brushes, tack, and clippers. an item that could be infected with infectious substances (such bacteria or viruses) and be used to spread them, such as a dish, doorknob, or piece of clothing. When a disease spreads from one sick individual to another without direct touch between the two, this is known as indirect transmission.It takes another organism to spread a disease from animal to human or from human to human in a vector transmission scenario. Direct touch, droplets, a vector like a mosquito, a vehicle like food, or the airborne route are all possible modes of transmission. The use of one of the three forms of transmission-based precautions—contact, droplet, or airborne—depends on how a particular disease is spread. The five basic ways that germs spread include direct contact, fomites, aerosol (airborne), oral (ingestion), and vectorborne.Some microbes have multiple ways of spreading. A pathogen is indirectly conveyed from a reservoir, source, or host to another host by biological products such as blood, serum, plasma, tissue, or organs during a vehicle-borne medical transmission process. In a car, a transmission, often known as a gearbox, serves as the conduit through which engine power is transferred mechanically through gears and gear trains to the wheels.Without a transmission, a person cannot apply power to a vehicle in a controlled manner; otherwise, the automobile cannot move.To learn more about fomite refer
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The male gametophytes of flowering plants are also referred to as _____.male sporophytes,embryo sacs,endosperm,pollen grains,megaspores
Answer:
pollen grains
Explanation:
Pollen grains are structures in the seed plants (spermatophytes) which contain vegetative cells but also reproductive cells - microgametophytes. Microgametophytes produce 2 male gametes or sperm cells. Vegetative cells produce pollen tube which is involved in the transfer of sperm cells to the ovule (female structure that forms female gametes). Pollen grains are different in shape, size and color, but all of them are enveloped with hard coat that has protective role.
Answer:
Pollen grains
Explanation:
Pollen grains are make gametophytes
-I took the course :)
In some species of jellyfish, red pigment is dominant to orange pigment. Give the genotype and phenotype between a homozygous dominant jellyfish and one that is orange.
Answer:
If you are asking for the genotypes and phenotypes of the offspring of the jellyfishes the answers are
genotype: Rr (heterozygous dominant)
phenotype: red
Explanation:
A homozygous dominant jellyfish is represented by RR. An orange jellyfish is represented by rr.
A homozygous dominant jellyfish with red pigment would have the genotype RR and exhibit a red phenotype. An orange jellyfish, as the recessive phenotype, may have a genotype represented as oo, showing the orange pigment due to the absence of the dominant red allele. This scenario reflects Mendelian genetics rather than incomplete dominance.
Explanation:In the scenario where red pigment is dominant to orange pigment in jellyfish, a jellyfish with a homozygous dominant genotype for the red pigment would have the genotype of RR, where both alleles contribute to the expression of the red pigment, resulting in a red phenotype. An orange jellyfish, being the recessive phenotype, would have a genotype represented potentially as oo if we assume red is dominant to orange without intermediate expression (since the question does not specify incomplete dominance as in the flower examples provided). This scenario differs from incomplete dominance observed in some plants, where a heterozygous genotype results in a phenotype that is a blend of both parent phenotypes, such as the described pink snapdragons resulting from red and white parents.
Therefore, the genotype of the homozygous dominant jellyfish would be RR, indicating it produces a significant amount of red pigment and appears red. Conversely, the orange jellyfish, representing the recessive phenotype, would have a genotype that does not produce the red pigment, which could be represented as oo, thus expressing the orange pigment due to the absence of the dominant red allele.
Lisa, a beginning marathon runner, trains in hot (80 degree), humid conditions. her third marathon occurs in hot (80 degree), dry conditions. while running, she consumes the same amount of water as she does in her previous races. close to the finish line, she gets a headache and collapses in seizures and slips into a coma. which hypothesis best fits what happened to lisa?
Answer: AND Explanation.
Lisa consumed too much water in too short of a time. This led to water leaking into the brain and disrupting the cerebrospinal fluid concentrations, impairing neural tissue activity
Lisa gets a headache, collapses in seizures, and slips into a coma, so based on the information provided, the most likely hypothesis for what happened to Lisa is that she experienced heat stroke, as presented in Option A.
What is heat stroke?Heat stroke is a serious and potentially life-threatening condition that occurs when the body's temperature regulation mechanisms fail, can happen when a person exercises in hot and humid conditions, in Lisa's case, she was used to training in hot and humid conditions, but her third marathon occurred in hot and dry conditions. Lisa's collapse, seizures, and slip into a coma suggest that her body temperature had risen to a dangerously high level, so she must be treated.
Hence, based on the information provided, the most likely hypothesis for what happened to Lisa is that she experienced heat stroke, as presented in Option A.
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The question is incomplete, complete question is below
Lisa, a beginning marathon runner, trains in hot (80 degree), humid conditions. her third marathon occurs in hot (80 degree), dry conditions. while running, she consumes the same amount of water as she does in her previous races. close to the finish line, she gets a headache and collapses in seizures and slips into a coma. which hypothesis best fits what happened to lisa?
a)heat stroke
b)homeostasis
WILL GIVE BRAINLIEST
Refer to the illustrations showing a sarcomere in two different stages to answer the question.
What does Stage 1 represent?
A. a muscle that is rotating
B. a muscle that is fully at rest
C. a muscle that is fully contracted
When the muscle is at rest, myosine heads are not interacting with actin. Stage 1 in the image represents a muscle that is fully at rest (Option B).
What are the components of the Sarcomere?In the sarcomere, we can identify the following components,
• A-band. This band reflects the length of the thick filament, including a small portion of the thin filament.
• I-band. This is the area located between the ends of the adjacent thick filaments. It is composed only of thin filaments.
• H-zone. This is the area located between the ends of the thin filaments. It is only composed of a portion of the thick filaments.
• Z-band is the vertical line placed at the end of each sarcomere. In adjacent sarcomeres, Z-band can be found in the middle of the I band.
How does muscle contraction occur?At restAt rest, tropomyosin is inhibiting the attraction strengths between myosin and actin filaments.
Tropomyosin is obstructing binding sites for myosin on the thin filament.
Contraction
During contraction, binding sites between myosine and actin become unblocked.
Myosin heads join to the uncovered actin-binding points forming cross-bridges. A power stroke initiates when this binding occurs. While the power stroke happens, myofilaments slide impulsed by chemical energy collected in myosin heads.
The muscular fiber gets shorter because the sarcomere reduces in length. The H line and the I band get shorter. Z-bands are pulled toward each other, shortening the sarcomere and the I-band, producing muscle fiber contraction. A band keeps constant in length.
Stage 1 in the image represents a muscle that is fully at rest (Option B). Binding sites between myosin and actin are blocked.
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Gender stratification refers to the ranking of males and females according to their access to power, property, and prestige based on their sex.
True
False
Gender stratification refers to the ranking of males and females according to their access to power, property, and prestige based on their sex. false
Which statement describes ozone?
A.
It forms a part of the upper atmosphere known as the ozone layer.
B.
It is a type of oxygen that is milky white in color.
C.
It consists of five oxygen atoms, making it a highly reactive molecule.
D.
A single ozone molecule can stay in the atmosphere for 100 years before it gets destroyed naturally.
A. It forms a part of the upper atmosphere known as the ozone layer.
A. Ozone forms a part of the upper atmosphere known as the ozone layer is the right statement to describe ozone.
What is ozone?Ozone is a layer of the stratosphere that contains protective gases around the planet.
This layer is most important for the earth to prevent itself from global warming.Depletion of the ozone layer can cause the greenhouse effect.Global warming can cause the melting of glaciers, scarcity of water, etcThe reasons for the depletion of the ozone layer include the use of aerosols and CFC-releasing appliances like air conditioners and refrigerators.Hence, option A is the right answer.
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Who created the modern model of the solar system by discovering that the plantes move in elipses? a. Galileo c. Ptolemy b. Kepler d. Copernicus Please select the best answer from the choices provided
Answer:
B-Kepler
Explanation:
The correct answer is B. Kepler
Explanation:
Johannes Kepler was an important astronomer and mathematician during the 17th century mainly known for his proposals related to the planetary motion that was the base for modern models of the solar system as well as other works such as the theory of universal gravitation by Newton. In his theory, Kepler proposed three main laws that stated the orbit of planets were elliptical rather than perfectly circular, the orbital period dependent on the axis or longest diameter of the orbit and each orbit had two foci. Additionally, this model differs from Copernicus because Copernicus had proposed orbits were circular. Therefore, the astronomer that created the modern model of the solar system and discovered orbits were elliptical was Kepler.
Features that result directly from wave erosion include-
A.) Cliffs
B.) Breakwaters
C.) Spits
D.) Beaches
Answer:it’s A
Explanation:I promise I just had the answer on a test a got it right
The powerful waves of the water collide with the rocks and erode the sediments resulting in the formation of the cliffs. Thus, option A is correct.
What is wave erosion?
Wave erosion is the type of deterioration of the rocks and sediments because of the high and powerful wave energies that split and break the large rocky structures into smaller and vertical walls of rock layers.
The cliffs are formed of vertical rock layers that are the result of wave erosion as the powerful water energy splashes the rocks over and over to create the structure.
Therefore, the cliffs result from wave erosion.
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The amino acids for beta hemoglobin found in five animal species were compared to the amino acids found in human (Homo sapiens) beta hemoglobin. The number of sequence differences was recorded.
Based on the molecular data, what inference could you make about the anatomy of these species compared to human anatomy?
A) Anatomically, lemurs are most like humans.
B) Anatomically, gorillas are most like humans.
C) Anatomically, none of the species are similar to humans.
D) Anatomically, only the lemur differs from humans in any way.
Answer:
anatomically, gorillas are most like humans
Explanation:
Answer:
The correct answer is option B.
Explanation:
Hi!
Let's solve this!
According to the data, we will analyze each of the options:
A) Anatomically, lemurs are like humans. This option is incorrect.
B) Anatomically, gorillas are more like humans. This option is correct since gorillas and humans are similar
C) Anatomically, none of the species is similar to humans. This answer is incorrect since gorillas are similar to humans.
D) Anatomically, only the lemur differs from humans in some way. This answer is incorrect.
After the analysis, we conclude that the correct answer is option B.
An ulcerated stomach lining often repairs itself once the source of inflammation has been eliminated. How is this possible?
a.) The tissue lining the stomach is an epithelium and thus capable of repair and renewal.
b.) The parasympathetic innervation of the stomach wall stimulates constant repair and renewal.
c.) The mucosa consists of a particularly vascular epithelium that facilitates efficient repair and renewal.
d.) All of the listed responses are correct.
Answer:
c.) The mucosa consists of a particularly vascular epithelium that facilitates efficient repair and renewal
a.) The tissue lining the stomach is an epithelium and thus capable of repair and renewal
Explanation:
The cells that form the lining of the stomach are deemed to wear out regularly due to the regular food intake they handle.
Due to this constant wearing, this cells have a mechanism of rejuvinating in order to handle their work.
Answer: Option A
Explanation:
The ulcerated stomach lining often repairs itself if the inflammation is removed this is because the tissue lining the stomach has the ability to repair and regenerate.
The healthy gut of the individual takes 2 to 3 weeks to generate the new lining of stomach which will help in treating the inflammation caused in the inner lining.
hence, the correct answer is option A
Claytonia virginica is a woodland spring herb with flowers that vary from white to pale pink to bright pink. Slugs prefer to eat pink-flowering over white-flowering plants (due to chemical differences between the two), and plants experiencing severe herbivory are more likely to die. The bees that pollinate this plant also prefer pink to white flowers, so that Claytonia with pink flowers have greater relative fruit set than Claytonia with white flowers. A researcher observes that the percentage of different flower colors remains stable in the study population from year to year. Given no other information, if the researcher removes all slugs from the study population, what do you expect to happen to the distribution of flower colors in the population over time? 22.2
Answer:
Over time, the plants will eventually all be pink because bees are more likely to pollinate the pink plants meaning the white plants are less likely to survive
Explanation:
Without the predation pressure from slugs, the pink-flowered Claytonia virginica is likely to increase in frequency due to higher survival and reproductive success, as bees prefer and more effectively pollinate these flowers.
If the researcher removes all slugs from the study population of Claytonia virginica, a woodland spring herb, we can expect the distribution of flower colors to change over time. Since slugs prefer to eat pink-flowering plants, their removal would likely reduce the herbivory pressure on these plants. Given that bees prefer pink flowers and that pink flowers have a higher relative fruit set, in the absence of slug predation, pink-flowering individuals would potentially have higher survival and reproductive success compared to white-flowering individuals. This would lead to an increase in the frequency of pink-flowered plants in the population over time.
Disorders of which organelle are often associated with defects in transport from compartment to compartment, resulting in poor sorting of protein components within the cell?nucleusendoplasmic reticulumplasmidsplasma membranethe Golgi apparatus
Answer:
The correct option is GOLGI APPARATUS.
Explanation:
The Golgi apparatus is the cell organelle that is responsible for transporting, modifying and packaging of synthesized proteins for delivery at specific locations, which may be inside or outside the cell. The number of Golgi apparatus that can be found in different cells differ greatly. Disorders of Golgi apparatus are usually associated with defects in proteins transportation, sorting and packaging.
Under- and mal-nourishment, a major concern in developing countries can lead to increases in infection susceptibility. hiv infection. antibiotic resistance. type ii diabetes.
NEED HELP!! Which of the following describes the most likely impact that exposure to pollutants in the atmosphere would have on one’s personal health?
It would stop cell-mediated immune responses.
It would lead to upper respiratory infections and pneumonia.
It would increase the release of red blood cells.
It would decrease one’s ability to produce antibodies.
Answer:
I think it would lead to upper respiratory infections and pneumonia is the right answer
Explanation:
It would be the second one down because if you consider places like china where they have super low air quality due to high pollution they tend to have upper respiratory issues which is why many of them wear masks.
Which is a renewable source of energy
Answer:
Solar energy, oxygen, fresh water, and biomass.
Explanation:
There were no answer choices.
Hope this helps!
Brainliest is appreciated. :D
Explanation:
there are quite a few but since u did not give any question choices here are a few:solar,hydro,biomass,geothermal these are only some
Hope it helps!
the study of the earth's air and weather is called ____
Answer:
the study of the earth's air and weather is called Meteorology.
Explanation:
Meteorology is the scientific study of the atmosphere that focuses on weather processes and forecasting.
Meteorological phenomena is observable weather and then explained by the science of meteorology.
Those events are bound by the variables that exist in Earth's atmosphere. These variables are temperature, pressure, water, and the gradients and interactions of each variable.
The majority of the observed weather is located in the troposphere of Earth.
Although meteorologists now use computer models it is still common to use techniques and conceptual models that were developed before computers.
The study of the earth's air and weather is known as meteorology, which involves predicting weather patterns and phenomena.
The study of the earth's air and weather is called meteorology. Meteorology is a branch of atmospheric science that focuses on the atmosphere and atmospheric phenomena to understand and predict earth's weather. Meteorologists use thousands of measurements, including air pressure and temperature, to generate weather forecasts. The related field of climatology examines climate, which encompasses averaged weather conditions over long periods, such as decades or centuries, focusing on patterns and effects on a broader temporal scale.
Which of the following causes populations to shift most quickly from an exponential to a logistic population growth?a. favorable climatic conditionsb. removal of predatorsc. decreased death rated. competition for resources
I'm pretty sure its b or c
D. Competition for resources. Every population has a carrying capacity(the max amount of individuals a population can sustain). once reached, growth rate will plateau.
Parasympathetic antagonists would stimulate gastrointestinal motility. True or False
the answer should be false
What type of cell makes up the myelin sheath of a motor neuron?
Answer:
glial cells <3
Explanation:
Antibodies are proteins produced by lymphocytes as a result of an immune response. The antibodies can fight
a.only viral infections.
b.only bacterial infections.
c.both viral and bacterial infections.
d.neither viral nor bacterial infe
Answer:
C
Explanation:
because anti-bodies help to protect the body
Answer:
Antibodies can only fight bacterial infections.
Explanation:
Antibodies can not fight both bacterial infections and viral infections. Only Vaccines can fight both.
Which of the following statements best describes the importance of biogeochemical cycles?
A. They explain how adaptations of organisms can change based on environmental pressures
B. They explain how energy moves through trophic levels of an ecosystem
C. They chart how biotic changes destroy unstable ecosystems
D. They show how certain compounds and elements move through the environment and are continually used and recycled
Answer:
D
Explanation:
There are different types of biogeochemical cycles such as; carbon, nitrogen, sulfur, phosphorus, and etcetera named after the respective elements being recycled. They show how these essential elements pass in different spheres of the earth (lithosphere, atmosphere, and hydrosphere) and are used and recycled by different processes.
The importance of biogeochemical cycles lies in their role in transporting and recycling essential compounds and elements through the environment, which supports life and maintains ecosystem health. So the correcct option is D.
Explanation:The best statement that describes the importance of biogeochemical cycles is: They show how certain compounds and elements move through the environment and are continually used and recycled (Option D). Biogeochemical cycles involve the movement of elements and water through living organisms (the biosphere) and the abiotic components such as the atmosphere, hydrosphere, and lithosphere. This process is crucial for maintaining life, as it ensures that essential nutrients are available for organisms to use and return to the environment in a continuous loop.
The water cycle, carbon cycle, and nitrogen cycle are examples of biogeochemical cycles that recycle water and elements needed by organisms. These cycles are fundamental to ecosystem structure and function. They regulate the availability of resources, support life processes, and are affected by various factors, including human activities which can disturb their balance, leading to environmental consequences.
16. What happens when an electrical gradient and a chemical gradient are applying opposite forces to active transport? A. They strengthen each other. B. They triple the strength of each other. C. They negate each other. D. They weaken the power of each gradient by half.
Answer:
C
Explanation:
This especially applies when the ions responsible for the chemical gradient have charges. The diffusion of the ions will be affected by the electric potential difference across the membrane. While they may want to diffuse freely across the membrane across a concentration gradient, they can only diffuse as far as the charge balance across the membrane allows.
C. They negate each other is the correct answer ig
What type of symmetry did your starfish have
Answer:
An adult starfish has radial symmetry
Explanation:
The starfish (and all echinoderms) start out with bilateral symmetry (which is like humans who have 2 symmetrical halves) during their larval stage. However, during metamorphosis they lose this bilateral symmetry and develop some kind of radial symmetry (5 identical parts).
most starfish have pentaradial symmetry, which means that they have five arms that radiate out from a central disk.
How do we explain?pentaradial symmetry is a type of symmetry is common in echinoderms, which are a group of animals that includes starfish, sea urchins, and sea cucumbers.
There are a few exceptions to this rule. For example, some starfish have six arms, and others have even more. There are also some starfish that have lost their arms altogether. However, pentaradial symmetry is the most common type of symmetry in starfish.
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While _________ involves a splitting off of parts of the personality,_________ involves the existence of multiple, intact personalities within one individual?
Answer:
b
Explanation:
Calcium is necessary to initiate muscle contraction. Which of the following molecules binds calcium?A. tropomyosinB. troponinC. actinD. myosin
Answer:
b. troponin
Explanation:
Troponin is a globular protein present in striated muscle, cardiac muscle and skeletal muscle.
This protein is constituted by troponins T, I and C
The subunit C (Tn C) is the one that is responsible for binding Ca2 + calcium ions (each mole of protein binds two mole of Ca2 +).
Why is sweat a good coolant for the body?
a. the arterioles that transfer water to sweat move closer to the skin surface when it is hot.
b. breaking h bonds between water molecules in sweat requires energy from body heat.
c. sweat contains minerals such as sodium chloride.
d. sweat is non-polar?
I believe it would either be a or b
Sweat is a good coolant for the body because breaking hydrogen bonds between water molecules in sweat requires energy from body heat.
What is a coolant?A coolant is a medium, usually fluid, used to draw heat from an object.
Sweat is a natural fluid from the body that exits the body through pores in the skin usually due to physical stress and/or high temperature for the purpose of regulating body temperature.
Large amounts of heat are needed to evaporate water, because hydrogen bonds need to be broken, therefore, sweating is an example of using water as a coolant.
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Whow do plants help maintain the quality of the atmosphere?
Answer:
By releasing the oxygen during the photosynthesis, and releasing the CO2 during the cellular respiration
Explanation:
The balance of gases in the atmosphere must be maintained.
Photosynthesis is a process performed by the plants (also some algae and bacteria) in which the energy of sunlight is transformed into chemical energy usable by those plants. Necessary components of this set of reactions are sunlight, water and CO2, while resulting products are glucose and oxygen. Products of photosynthesis are then used in the metabolic processes known as cellular respiration. During the cellular respiration, glucose and oxygen are used for the production of ATP, CO2 and water. Cellular respiration is performed in all living organisms.
The plants are living organisms that are producers. They are able to perform the process of photosynthesis. Through this process, the plants are included in numerous natural cycles, such as the oxygen cycle, carbon cycle, nitrogen cycle, water cycle. By using all these gases and the water, the plants manage to balance the atmosphere's composition and keep it healthy and in good condition that enables the other organisms to live. Basically, the plants are taking in the water in these gases for the process of photosynthesis, thus to produce their own food. As they use them, they release some of them in the atmosphere, some in the soil, while some are stored in them. The oxygen and the water vapor are some of the ones that are released into the atmosphere. This keeps the oxygen levels fairly constant in the atmosphere, and considering that the oxygen is crucial for the living organisms, this is very important. The water vapor is released into the atmosphere and it contributes to the formation of clouds, thus precipitation, clearing the air in the process. The carbon is mostly stored in them, so they manage to keep its levels stable and control the Greenhouse effect.
10 points PLUS BRAINLIEST answer
1. Which of the following best explains the relationship between science and ethics?
A. There is no relationship between science and ethics
B. Every scientific question raises serious ethical concerns
C. Scientists should try and avoid ethical questions because they limit research
D. Science provides facts and ethics determines how to best use the information
2. The first European to cross the Atlantic ocean were?
A. Greeks
B. Italians
C. Vikings
D. Spanish
3. Which of the following best describe captain James cooks contribution to marine science?
A. Proving that humans were harming the ocean
B. Documenting the islands in the Atlantic for the first time
C. Creating records of marine life as he explored new regions
D. Requiring all ships in the navy to have a marine scientist on board
Answer:
1. The best statement is Science provides facts and ethics determines how to best use the information
2. The first European to cross the Atlantic ocean were Italians.
3. Captain James Cook created records of marine life as he explored new regions
Explanation:
1. Science and ethics are compulsory for each other. A scientific study without ethical consideration is not significant. Implications of all the information we get by science are determined by ethics.
2. Christopher Columbus an Italian was the first European to cross the Atlantic Oceans. He started his journey from Spain and accidentally discovered America.
3. Captain James Cook contributed to the marine sciences during his voyages by creating records of marine life as he explored new regions.
Answer:
1. D. Science provides facts and ethics determines how to best use the information
2. C. Vikings
3. C. Creating records of marine life as he explored new regions
Explanation:
Just did the Exam for Marine Science!
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<Jayla>
Testosterone is synthesized primarily by the
Testosterone is synthesized primarily by the Leydig cells.
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What is the definition of a dihybrid cross?
Answer:
Simply saying it is cross that involves two traits
Explanation:
In dihybrid cross the phenotypes of two genes are followed through the mating of individuals which carry multiple alleles at those gene loci. In other words, two genes controlling two different phenotypic traits are observed in dihybrid cross.
"Dihybrid cross",means
"di" indicates that there are two traits involved for example A and B and
"hybrid" indicates that each trait has two different allele, for example A and a or B and b.
A dihybrid cross is a genetic cross between two individuals that are heterozygous for two different traits.
In genetics, a dihybrid cross examines the inheritance patterns of two traits simultaneously. Each parent in the cross is heterozygous for both traits, meaning they possess two different alleles for each trait. The purpose of a dihybrid cross is to determine the probability of offspring inheriting various combinations of these traits, and it often follows Mendel's laws of independent assortment, which state that the alleles for different traits are distributed to sex cells (and offspring) independently of one another.