Answer: 50% BB, 50% BW
Explanation:
The phenotype of the progeny will be BW 50% of the progeny are BB, and 50% of the progeny are BW. Both alleles are expressed in the phenotypic and neither of these two alleles is able to dominate the other.
What is Codominance?Codominance is a type of inheritance in which two alleles of the same gene are expressed differently to produce different traits in an individual. It is the presence of multiple dominant alleles for the same gene.
For the above given information,
Black chicken (BB) cross with black-and-white (BW) chicken. The gametes will be B, B, and B, W.
So, 50% of the offspring is BB black chicken and 50% is black-and-white (BW) chicken.
Thus, the phenotype of the progeny will be BW 50% of the progeny are BB, and 50% of the progeny are BW. Both alleles are expressed in the phenotypic and neither of these two alleles is able to dominate the other.
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Definition of stem cell ?
Answer:
Stem cells are cells of the body (somatic cells) which can divide and become differentiated.
Explanation:
Answer:
an undifferentiated cell that can divide to produce some offspring
what are the cell cycle phases in order
The cell cycle phases in order consist of interphase (divided into G1, S, and G2 phases), followed by the mitotic phase which includes mitosis (with stages prophase, prometaphase, metaphase, anaphase, and telophase) and concludes with cytokinesis.
Explanation:Phases of the Cell Cycle
The cell cycle is an ordered series of events involving cell growth and cell division that result in two new daughter cells. The cycle can be divided into two main components: interphase and the mitotic phase. Interphase itself consists of three stages:
G1 phase (first growth phase): The cell grows in size and the number of organelles doubles.S phase (synthesis phase): DNA replication occurs, creating an identical copy of the cell's DNA.G2 phase (second growth phase): Proteins needed for cell division are synthesized and the cell prepares for mitosis.The mitotic phase follows interphase, beginning with mitosis (karyokinesis), which includes the stages: prophase, prometaphase, metaphase, anaphase, and telophase. Finally, cytokinesis occurs, where the cell's cytoplasm is divided, concluding the cell cycle and resulting in two genetically identical daughter cells.
If 48 g of magnesium reacts with oxygen gas, how many grams of magnesium oxide will be
formed according to the following equation?
2 Mg + O2 → 2 Mgo
To find the mass of magnesium oxide produced, we calculate the moles of magnesium reacted, then use stoichiometry based on the balanced chemical equation to find the moles and mass of magnesium oxide formed. Approximately 79.61 g of magnesium oxide will be produced when 48 g of magnesium reacts with oxygen.
Explanation:To calculate the mass of magnesium oxide (MgO) formed from the reaction of magnesium (Mg) with oxygen (O2), we need to use the balanced chemical equation and stoichiometry. The chemical equation for the reaction is: 2 Mg + O2 → 2 MgO.
First, we find the number of moles of Mg using its molar mass (24.305 g/mol). Since we have 48 g of Mg, this is:
48 g Mg × (1 mol Mg / 24.305 g Mg) = 1.976 moles of Mg.
According to the balanced equation, 2 moles of Mg react with 1 mole of O2 to produce 2 moles of MgO. Therefore, the amount of MgO produced will also be 1.976 moles since Mg is the limiting reactant.
The molar mass of MgO is approximately 40.30 g/mol. So the mass of MgO produced is:
1.976 moles MgO × 40.30 g/mol = 79.61 g MgO.
Which of these could be a good reason to end a dating relationship?A.One partner uses physical violence.B.Both partners accept responsibility for their behavior.C.One partner regularly says nice things about the other partner.D.Both partners engage in sexual abstinence
Answer:
a. one partner uses physical violence
Answer:
a.one partner uses physical violence
explain the difference between melting and melting point
Answer:
Explanation:
The melting point is the temperature at which any substance melts i.e changes its state from solid to liquid.
Melting is a phase change from solid to liquid.
Melting point is a temperature value or number. Melting is phase change from solid to liquid. Melting usually occurs when temperature is added to a body. The melting point of all pure samples of a compound is the same as it is an intensive property. Melting is physical change of matter.
top layer of the leaf that serves as waterproof covering is the
Answer:
Its covering the Epidermis
The upper epidermis of a leaf is covered by a waxy cuticle that serves as a waterproof barrier, reducing water loss and protecting the leaf.
The upper epidermis is the top layer of the leaf that functions as a protective barrier. This layer is usually one cell thick, but can become thicker in harsh environmental conditions. The upper epidermis is covered by a waxy, waterproof cuticle, which helps to prevent water loss from the leaf due to evaporation and transpiration.
Additionally, some leaves have trichomes, which are small hairs that further aid in reducing water loss and can deter herbivores by storing toxic compounds or by physically impeding insects.
a. Cows that have a spotted coat have a roan coloring. Both (blank)
are expressed. This pattern of
inheritance is a result of (blank)
Answer: Cows that have a spotted coat have a roan coloring. Both genes are expressed. This pattern of inheritance is a result of codominance
Explanation: Every trait is controlled by a gene that occurs in pair. An allele is a different form of a particular gene. Alleles can be dominant or recessive. A dominant gene is one that is able to express itself in the presence of a recessive gene or is able to mask the effect of the other gene. A recessive gene is one whose effect is masked by a dominant gene. When two genes equally express themselves outwardly, they are said to be codominant.
Codominance is a situation whereby neither of the genes is completely dominant rather both express themselves equally phenotypically. In codominance, one gene is not capable of masking the effect of the other.
What do you notice about the temperature at each of the layers boundaries
Answer: The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C). This layer is hard to study
Explanation: hope this helps please give brainliest!
Why is this unicellular organism called an "ameba"?
An ameba is called so because of its ability to move and feed by extending pseudopodia, characteristic of organisms classified under the Amoebozoa supergroup. These organisms, which include both free-living and parasitic species, exhibit diverse adaptations such as bacterial endosymbiosis or multicellular stages in slime molds.
The unicellular organism is called an "ameba" due to its amoeboid movement and structure. Its body, often described as a blob of jelly, possesses the ability to change shape by extending and retracting pseudopodia (false feet) which allows it to move and ingest food through a process called phagocytosis. Ameba belongs to the Amoebozoa supergroup, which includes a variety of protozoans that exhibit similar amoeboid movement. The movement and feeding mechanism are facilitated by actin microfilaments within the cell that extend the cell membrane to form pseudopodia. Amebas are found in various environments and can exist as free-living organisms or parasites. The genus Entamoeba, for instance, includes species that can be harmful to humans, such as E. histolytica, the cause of amoebic dysentery.
Diverse amoebas exhibit specialized adaptations according to their habitat and lifestyle. The Gymnamoeba or lobose amoebae, including the well-known Amoeba proteus, show significant variation in size and complexity, from single to multinucleate forms. Their capability to host bacterial endosymbionts in place of mitochondria is a fascinating aspect of some amoebas, indicating a complex relationship with their environment. Another remarkable adaptation is observed in slime molds, especially cellular slime molds like Dictyostelium discoideum, which transition between unicellular and multicellular life stages, demonstrating cell differentiation and collective behavior.
5. Which best explains why there is a greater concentration of oxygen
located near the ocean's surface?
A Sunlight warms the ocean's temperature and stimulates oxygen
production near the surface.
B. Plankton produces excess amounts of nutrients that remove oxygen
levels from the atmosphere.
C. Marine life gives off oxygen instead of carbon dioxide, which makes
the ocean water rich in oxygen.
D. Plants, which release oxygen, live near the surface of the ocean,
where they receive large amounts of sunlight.
Answer:
D. Plants, which release oxygen, live near the surface of the ocean,
where they receive large amounts of sunlight.
Explanation:
Plants are the multicellular and eukaryotic organisms which are autotrophic in nature. Autotrophic means they are able to prepare their own food in the process of photosynthesis. Stomata opens in daytime due to the presence of sunlight through which carbondioxide gas enters into the leaves through stomata and water is absorbed from the soil through roots. These two substances are the reactants of this process. When they combine with each other forming oxygen and glucose.
Analyze and evaluate how natural selection produces change in populations as opposed to individuals.
Answer:
Natural selection can be described as a phenomenon in which individuals of a population which are better adapted to survive in an environment are favored by nature as compared to the individuals of the population which lack better characteristics to survive in the environment.
Through natural selection, evolution occurs and the allelic frequency changes over a period of time. The process of evolution as well as change in the allelic frequencies does not occur just by a single individual, rather it is a collective effort which takes a lot of time. Hence, we say that natural selection changes the population and not a single individual.
What determines the function of a protein apex?
The function of a protein determined by:
The shape determines the working of a protein. A protein's design is determined by its primary structure i.e the amino acid sequence. The amino acid sequence within a protein is decided by the encoding arrangement of nucleotide in the gene (DNA).
The role of a protein is utterly dependent on its three-dimensional architecture (other than when it caters as food). This framework may be disturbed by a number of agents thereby denaturing the protein:
Variations in the pH (between charged amino acids the electrostatic interactions is changed).difference in concentration of salt (does the same).temperature change (higher temperatures decrease the strength of hydrogen bonds).reduction agent presence (disruption of S-S bonds among cysteines).2. Plants that live on the floor of forests tend to have much larger leaves than plants than live in hot, sunny
conditions. Offer an explanation for this in which you refer to specific parts of the internal structure of a
leaf.
Answer:
all i know is they have big leaves because on the forest floor, because it is hard to get sunlight, so big leaves maximizes the chance of getting some sunlight for photosynthesis
Explanation:
will obstacles in the path of running water affect how much erosion takes place?
Answer:
yes
Explanation:
The answer is yes because there can be rocks changing or blocking the path of the water. While the water can erode the rocks over time it will take even more time to erode the other land and if the flow of the water stops the water will not be able to shape or erode the rest of the land.
How does land use change as the human population increases?
O
A. Forestland becomes developed land.
O
B. Urban land becomes cropland.
O
C. More land becomes available for preserves.
O
D. Developed land is converted to wetlands.
Answer:
Forest land becomes developed land
Explanation
Just took the test
As the human population increases, the main change in land use involves forestland being transformed into developed land for housing, infrastructure, and farming. Natural habitats may be destroyed due to this process. Usually, urban land is not primarily converted to cropland.
Explanation:As the human population increases, land use significantly changes to accommodate the growing needs. Predominantly, Forestland becomes developed land. This is primarily due to the necessity for more housing, infrastructure (like roads and schools), industrial developments, and farming land to feed the increasing population.
Due to this conversion of land, natural habitats and ecosystems are often disrupted or destroyed. Therefore, the notion that more land becomes available for preserves can sometimes be misleading since the total amount of undisturbed land globally actually shrinks as the human population grows.
Urban land may sometimes be converted into cropland, but this is not the primary trend. Typically, rural areas and forests are cleared for farming before utilizing urban lands.
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Which answer identifies the accurate food chain for a snake, grasshopper, frog, and grass?
frog → grasshopper → grass → snake
grasshopper → snake → frog → grass
snake → frog → grasshopper → grass
grass → grasshopper → frog → snake
grass, grasshopper, frog, snake
♡ The Question ♡
-Which answer identifies the accurate food chain for a snake, grasshopper, frog, and grass?
* ୨୧ ┈┈┈┈┈ ┈┈┈┈┈┈┈ ୨୧*
♡ The Answer ♡
-Grass → Grasshopper → Frog → Snake!
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
♡ The Explanation/Step-By-Step ♡
-No Explanation/Step-By-Step provided!
*୨୧ ┈┈┈┈┈┈┈┈┈┈┈┈ ୨୧*
♡ Tips ♡
-No tips provided!
What are examples of a medium
Answer:
size of a medium
Explanation:
it is between large and small
Which statement correctly explains how recombination increases genetic variation
Answer: Local recombination rate is expected to affect baseline diversity (grey dotted line). ... This mixing is called recombination, and it results from crossover events, where pairs of chromosomes swap genetic material. Evolutionary biologists have long known that recombination seems to increase genetic diversity.
Explanation: Natural selection attributes to increased genetic variation.
( Extremely Need Help ASAP). Will Mark Brainliest to whoever can be honest with there response). You will do research to learn more about the seismic waves play in earthquakes and tsunamis. Address one of the following questions: • How does an underwater earthquake cause a tsunami? • Why do some earthquakes cause more damage than others? Here's a website and some keyword search terms to help you get started ( USGS EARTHQUAKES) Keywords search terms: earthquakeformation, P wave, S wave, tsunami, earthquake travel, analyzing earthquakes. Should do the following things: 1) discuss how different types of waves are formed and describe how the waves travel. 2) explain how scientists use waves to track and analyze earthquakes. 3) cover recent events involving earthquakes and / or tsunamis that illustrate the points made in your explanation. ( Will Mark Brainliest to whoever can be honest with there response).
After Translation, a polypeptide chain undergoes modifications. Which of the following would NOT
be a post-translational modification?
O A. Addition of Acetate
B. Addition of a Disulfide Bridge
OC. Removal of non-functional Intron
D. Removal of Methionine
Answer:
Answer is B
Explanation:
The correct answer to the question is C. Removal of non-functional Intron, as this is not a post-translational modification but rather an event that occurs during mRNA processing before translation.
After translation, a polypeptide chain undergoes various post-translational modifications (PTMs) to become functionally active. These modifications can include the addition of functional groups like acetate (acetylation) or the formation of disulfide bridges, as well as the cleavage of peptide bonds. For example, insulin undergoes PTMs where disulfide bonds are formed, and it gets cleaved to form the mature hormone.
PTMs can occur on the amino acid side chains or at the protein's C- or N-termini. They can involve the introduction of new functional groups, such as phosphate, acetate, amide groups, or methyl groups. One of the most common PTMs is phosphorylation, particularly on amino acids like serine, threonine, or tyrosine. However, the removal of an intron is not a PTM because introns are non-coding sequences removed during mRNA splicing before translation occurs. Therefore, the correct answer to which would NOT be a post-translational modification is C. Removal of non-functional Intron, as introns are removed during RNA processing and before the translation process initiates.
The energy found in nutrients originates from the
Answer:
The energy found in nutrients originates from the Sun
What are the different structures and functions of roots?
Different structures and functions of roots
Explanation:
Roots are the underground descending non-green part of the plant.
Root functions: Anchorages the plant to the soil, absorbs water and nutrients from the soil.
Characteristics: Positively geotropic and hydrotropic, negatively phototropic; does not have nodes, internodes or stems.
Types:
Tap root Adventitious root – fibrous, foliar and true adventitious rootsStructure and functions:
Root cap or Calyptra: Cap-like structure covering the root tip .Function: protects the meristematic tissues of the root, secretes mucilage which enhances the root tips to grow into the hard soil. Meristematic zone or growing point sub-terminal behind root cap. These cells are inverted and looks like a dome. Function – helps in the root growth by adding new cells to the root tip and other basal regions Zone of elongation behind the meristematic zone. Function – helps in elongation of the root Root hair zone: This is the zone of differentiation where cells differentiate into vascular tissues like phloem, xylem, endodermis, cortex etc. The main function of root hair is to increase the total surface area of root to facilitate more absorption of water and other nutrients from the soil Zone of maturation: the major and mature portion of a root. Function - lateral roots originates from this zone and radial differentiation leads to secondary growth.Identify structure A.
Identify structure B.
Identify structure C.
Identify structure D.
Explanation:
A = chloroplast
B = stroma
C = granum
D= thylakoid
Without more context or visual aids, it is not possible to accurately identify the structures A, B, C, and D. They could be parts of a cell or elements of a biological system.
Without visual aides or context, it isn't possible to accurately identify 'Structure A', 'Structure B', 'Structure C', and 'Structure D'. Considering a biological context, we might be referring to various parts of a cell (e.g. the nucleus, mitochondria, ribosomes etc.) or different parts of a biological system (like the circulatory or nervous system). If you have specific structures within a diagram that you're trying to identify, please provide more information if you can, and I'll happily help you understand their functions.
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Describe one niche in the ecosystem.
Answer:
Niche can be described as the role or position that a particular organism has in its ecosystem.
For example, honeybees which will gather nectar from flowers to make honey is an example of a niche. The particular role of honeybees in an ecosystem is to collect nectar in that ecosystem from different flowers and to produce honey. Other organisms living in the same environment will not perform the same function in the ecosystem.
Drag each tile to the correct location on the table. Match the adaptions to the correct biome.
Answer:
desert: plants have structres that conserve water, and animals have ability to burrow to escapde the heat
taiga: trees have soft green needles or leaves , animals migrate to warmer regions during winter
Explanation:
Desert: plants have structures that conserve water and animals have ability to burrow to escape the heat
Taiga: trees have soft green needles or leaves and animals migrate to warmer regions during winter
Desert and taiga ecosystems exhibit distinct adaptations in their plant and animal life to cope with the unique environmental challenges they face. In the desert, where water is scarce and temperatures can be extreme, plants have evolved structures that effectively conserve water. Many desert plants feature specialized adaptations such as deep root systems, succulent tissues, or modified leaves that reduce water loss through transpiration. Additionally, animals in the desert often possess the ability to burrow into the ground to escape the heat, finding refuge in cooler, subterranean environments during the hottest parts of the day.
Conversely, the taiga, characterized by its cold climate, particularly during winter, showcases adaptations in its plant and animal life that address the challenges of low temperatures. Trees in the taiga, such as conifers, typically have soft, needle-like leaves that reduce surface area and water loss, enabling them to thrive in colder conditions. Animals in the taiga often migrate to warmer regions during winter, seeking more hospitable climates where food is more accessible. Migration allows these animals to avoid the harsh winter conditions and scarcity of resources, ensuring their survival in the challenging taiga environment.
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Which of the following structures are found in plants but not in animals? Select all that apply.
cell wall
chloroplast
ribosome
golgi apparatus
lysosome
Answer:
cell wall
chloroplast
Answer:
cell wall and chloroplast should be correct. hope this helps
Explanation:
These stinging cell animalsuse what
to move their armlike parts?
Cnidarians uses arm-like parts called tentacles to sting.
Explanation:
Animals belonging to genus Cnidaria use arm-like structures called tentacles to sting. The cnidarians tentacles are present with specialized stinging cells called cnidocytes.
These cnidocytes are responsible for the stinging action which is done by the cnidocyte organelle called the nematocysts or the stingers.
Nemotocyts contain coiled thread or barb-like or hair-like structures which fires the toxin out while stinging.
The opening or the mouth-like parts on the tentacles contain numerous cnidocytes which releases toxin when the tentacles are touched by another organism or when the cnindarian touches its prey.
What would happen if glycolysis stopped happening in a cell
Explanation:
If Glycolysis stopped happening in the cell, the cell would not likely produce ATP molecules and in the same time, the Krebs cycle will not function without it.
Answer:
The Krebs cycle could not function
Explanation:
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List of organisms place them in appropriate place on timeline
Answer:Bacteria
Archaea
Eukarya
Viruses
Bees
Tapeworms
Great White Shark
Do organisms use mitosis, interphase, meiosis, or the G1 phase to grow?
Answer:
mitosis produces more cells and the G1 phase is often referred to as the growth phase, because this is the time in which a cell grows
Explanation: