DNA replication or repair occurs in a cell in all of the following situations, EXCEPT when

A)
cells undergo meiosis.


B)
cells undergo mitosis.
Eliminate

C)
proteins are synthesized.


D)
cells repair damage from UV light

Answers

Answer 1
DNA replication occurs in a cell in all of the following situations, EXCEPT when 



Answer: C. proteins are synthesized 

                        Good luck and have a nice Benevolentpuppy day! :D
Answer 2

Answer:

C)  proteins are synthesized.

Explanation:

It is only when protein is being synthesized DNA replication or repair does not take place. In rest of the situations, DNA replication and repair does take place. In fact while mitosis and meiosis, DNA repair plays a very important role. If a DNA is damaged at the time of these events and in case it is not repaired immediately then all the subsequent cells arising from such cell will have damaged DNA. Such cells with damaged DNA are not fit because they can give rise to cancer. So, our body does best to repair DNA of such cells, but if still the body fails to repair such damaged DNA then the body decides to kill such cells through apoptosis. UV light causes thiamine thiamine dimer formation which leads to a disease known as xeroderma pigmentosum. This kind of DNA can be repaired by supplying electron beams so that thiamine thiamine dimer could dissociate.


Related Questions

WILL GIVE A BRAINLEST

Animal migration on savannas is often governed by _____.


reproduction


fire


rainfall


distance

Answers

The correct answer is C.) Rainfall

Answer:

Rainfall

Explanation:

Savanna is the tropical grassland and is characterized by presence of scattered patches of trees. The region experiences vary low rainfall or seasonal rainfall often accompanied with prolonged dry periods. Most of the animals from savanna migrates towards the regions of water availability to escape the dry periods of the savanna.

How does the rainfall of grasslands like this compare to deserts and forests? 2. how does the behavior of communal (group) calving help the survival of mongolian gazelles? 3. why is it important for gazelles to be "born to run" in an ecosystem like the mongolian plains?

Answers

2. It's the safest way to have young's. It would be impossible for predators to sneak up.
3. In case fire or anything dangerous is near.
Final answer:

Grasslands typically have moderate rainfall, between that of deserts and forests. Communal calving in Mongolian gazelles provides protection to the offspring from predators. Being ‘born to run’ is crucial for gazelle survival, as it allows young gazelles to quickly escape possible predators.

Explanation:

The rainfall in grasslands generally falls in between that of deserts and forests. Deserts receive very little rainfall, typically less than 10 inches per year, while forests receive abundant rainfall, usually exceeding 30 inches per year. Grasslands typically receive moderate rainfall, approximately 10 to 30 inches per year.

The behavior of communal (group) calving in Mongolian gazelles offers protection to the young from predators. With many gazelles giving birth in the same area, predators cannot target individual offspring easily.

The ability to run shortly after birth is critical for Mongolian gazelles on the open plains. This ecosystem is home to many predators, and the ability to quickly escape is important for the survival of young gazelles.

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Courtney is a participant in a laboratory sleep study. her eeg begins showing small bursts of electrical activity known as sleep spindles. courtney has entered _____ sleep.

Answers

Courtney has entered STAGE 2 SLEEP.
There are two types of sleep, REM and NON REM SLEEP. The NON REM sleep is divided into three stages, which are stages 1, 2 and 3. The stage 2 of the NON REM sleep is the most prominent sleep stage. At this stage, the EGG usually show small burst of electrical activity which is called sleep spindle.

How are the proteins used for active transport different from those used for facilitated diffusion?
A:The proteins for facilitated diffusion must attach to a carbohydrate to work.
B:The proteins used in facilitated diffusion create larger openings in the cell membrane.
C:The proteins involved in active transport must be powered by ATP to work.
D:The proteins that carry out active transport move only the largest molecules.

Answers

AnswerC) The proteins involved in active transport must be powered by ATP to work.Explanation:

If we talk about active transport mechanisms, it means that the proteins basically require the use of the energy, that energy is usually in the form of adenosine triphosphate (ATP). but if we talk about the facilitated diffusion, then the solute can move from the regions of lower concentration to the region of higher concentration. In this way, the proteins used for active transport different from those used for facilitated diffusion.

Final answer:

Proteins used for C. active transport and facilitated diffusion are different in terms of energy requirement, direction of movement, and conformational changes.

Explanation:

The proteins used for active transport are different from those used for facilitated diffusion in several ways.

The proteins involved in active transport require energy in the form of ATP to move molecules against their concentration gradient, while the proteins used in facilitated diffusion do not.The proteins for facilitated diffusion help molecules passively move down their concentration gradient through specific channels or carriers, while the proteins involved in active transport can move molecules against their concentration gradient, usually through pumps or carriers.The proteins for facilitated diffusion do not undergo any conformational changes and do not require any external energy, whereas the proteins for active transport undergo conformational changes and require ATP.

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give 2 other names for sunlight energy.

Answers

solar energy

Heat energy (radiation)

are your answers

hope this helps
Solar energy, and radiant energy.

How can you measure the plant pieces to determine the rate of osmosis?

Answers

Answer: By measuring the plant's pieces mass, or the surface area to volume ratio.

By measuring the change in mass from initial to after solution indicates the net flow of water, if it increases it proves that osmosis occurred.
If the surface area to volume ratio decreases that also means that osmosis has occurred.

This measurements can’t be used to determine the rate of osmosis but can  prove that it occurred.

An atom of radon gas emits an alpha particle as shown below. Radon-222 has 86 protons and 136 neutrons. What daughter product will form from this decay?

Answers

The answer is Polonium-218 (84 protons).

Alpha particles consist of two protons and two neutrons. So, mass is 4 (2+2) amu .
When an atom of emits an alpha particle, its atomic number will be reduced by 2 and a mass number will be reduced by 4:
 →  + .

After emission of the alpha particle from Radon-222 with 86 protons, the daughter product will have the atomic number reduced by 2: 86-2 = 84 and the mass number reduced by 4: 222-4=218:
  →  + .

Correct Answer: B. Polonium-218 (84 protons)

Explanation: The original atomic number of radon is 86, and the mass number is 222 (136 neutrons plus 86 protons). The emission of an alpha particle will reduce the mass number by 4 and the atomic number by 2. Therefore, radon-222 (86 protons) yields polonium-218 (84 protons).

If a plant uses up all the available carbon dioxide, which event will happen first?

Answers

A decrease in its sugar production.

Answer: The correct answer is -

Decrease in the rate of photosynthesis that is formation of carbohydrate (glucose) will be reduced.

Carbon dioxide (CO2) is one of the essential reactants in the process of formation of food (photosynthesis) in plants.

Photosynthesis is a process of formation of food (glucose) in green plants and algae using CO2 and H2O (water) in the presence of sunlight.

If all the available carbon dioxide is used up by a plant, the process of photosynthesis will be affected significantly, which will cause a decline in the formation of carbohydrate (glucose) in the plant.

Explain why the frog population would most likely decrease if there were a decrease in the cricket population

Answers

frogs eat bugs like crickets. they need them to survive. if there were a decrease in the cricket population it would disrupt the food chain and cause the frog population to decrease because one of their food sources are gone or depletes
because of a couple of things. one frogs rely on crickets as one of their biggest food sources. another would be because when minnows are ..i guess training to be a frog crickets are easy targets. Thanks!

Deliberately transferring a gene from one species to another is an example of

Answers

This is an example of genetic engineering, also known as genetic modification. Many different techniques may be employed depending on the ultimate goal of the gene transfer, and genetic engineering can be carried out in both plant and animal species. Genetic engineering can be used for many purposes, such as improving disease resistance or crop yields, enhancing specific characteristics or developing new medicines.

What is the most direct way to differentiate between types of epithelial tissue

Answers

The most direct way to different types of epithelium tissue is by the number of cell layers and by the shape of the cells. As for the layers, they can be simple, if there is only one layer of cells, or stratified, if there is more than one layer of cells. Related to the shape of the cells it can be a squamous epithelium, a cuboid epithelium, a columnar epithelium, or transitional when the cell can adopt different shapes so that the epithelium can be stretched.

use the words and concepts of evaporation and condensation as well as a form of each of these words explain what happens when it rains in portland oregon

Answers

Portland, Oregon, is a city right next to northern west coast of the USA. Besides being very close to the sea, it is also laid on a river. The sun that heats up the ocean and the river leads to evaporation, causing water vapour to ascend, because of a few wind currents, this water vapour is taken to Portland's area where it colds down and condensates, raining over Portland.

Explain the mechanism by which air masses rise and fall and how it contributes to stratospheric ozone deterioration

Answers

Air masses rise and sink due to the fact that warm air is lighter than cold air , thus warm air rises and cold air then sinks. When air masses rise, gaseous molecules are transported into the atmosphere which negatively impacts the ozone layer.
Final answer:

Air masses rise and fall due to the process known as convection. The release of industrial chemicals called chlorofluorocarbons, or CFCs, can lead to the decomposition of ozone molecules in the stratosphere, resulting in what is referred to as an 'ozone hole'. International efforts, such as the Montreal Protocol, have contributed to a decrease in ozone loss and a shrinking of the ozone hole.

Explanation:

The mechanism that causes air masses to rise and fall is called convection. When the air near the earth's surface is warmed, it expands, becomes less dense, and rises. Conversely, when the air at higher altitudes is cooled, it condenses, becomes denser, and falls. This process plays a significant role in the stratospheric ozone deterioration.

Ozone (O3) is found in the stratosphere, a layer of the atmosphere that protects earth from solar radiation by absorbing ultraviolet light. However, the use of industrial chemicals known as chlorofluorocarbons, or CFCs, can lead to the depletion of these ozone molecules. Ultraviolet light causes these CFCs to decompose, producing atomic chlorine, which in turn reacts with and breaks down the ozone molecules.

This breakdown forms what is known as an “ozone hole”, an area of diminution in ozone concentrations mostly centered over the southern hemisphere. Since the 1980s, an international treaty, the Montreal Protocol, has limited the production of CFCs, contributing to a gradual decrease in size of this ozone hole, demonstrating how international action can maintain earth's habitability.

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Explain how the hitech provisions use health it to support health care reform.

Answers

HITECH stands for Health Information Technology for Economic and Clinical Health (HITECH). The  provision gives base and directions how to achieve some goals in the health care system , like health care delivery
improve health care quality, reduce costs; and increase accessthrough better methods of storing, analyzing, and sharing health information. This way the HITECH provision supports health care reform. 
information.

The HITECH provisions support healthcare reform by promoting the use of Health IT to improve care, decrease costs, and expand access to health insurance. This includes the adoption of EMRs and the establishment of health insurance exchanges, all underpinned by enhanced security measures.

The HITECH provisions enhance healthcare reform efforts by leveraging Health Information Technology (Health IT) to improve healthcare quality, prevent medical errors, reduce healthcare costs, increase administrative efficiencies, decrease paperwork, and expand access to affordable healthcare. Specifically, HITECH encourages the use of Electronic Medical Records (EMRs) to reduce administrative costs associated with paper records. It envisions a more efficient healthcare system where the easy exchange of health information supports better patient outcomes and cost savings. Additionally, health IT is fundamental in the establishment of health insurance exchanges that increase insurance accessibility and affordability through an organized and competitive market.

Another key focus is on security concerns in the healthcare industry. With the move towards digital records and information exchange, there are provisions for stricter security measures to protect patient information. As part of the Affordable Care Act (ACA), HITECH provisions are aimed at improving the overall health insurance system through technology, which will also influence the cost-effectiveness of care and the ability to manage population health more effectively.

Make sure to enter all cell reference in upper case when putting them in formulas.
a. True
b. False

Answers

The answer is true because this is essential when putting them in formulas so that the worksheet may be able to provide the values or find the values that are going to be calculated in the cell that has been provided.

How do sodium and potassium leak channels play a role in the development of the negative membrane potential of the axolemma (plasma membrane of the axon)?

Answers

The plasma membrane of axon is called axolemma. The potassium and sodium leak channels leak the sodium and potassium ions inside the cell respectively. The leak channels provide the constant movement of ions across the membrane. Potassium and sodium ions are positively charged, thus entry of positively charged ions inside the cell makes the cell more positively charged than the environment outside the cell. The environment outside the cell becomes more negatively charged. This leads in the negative membrane potential of axolemma.

what is the igneous rock

Answers

Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface. The magma, which is brought to the surface through fissures or volcanic eruptions, solidifies at a faster rate.

Igneous rocks form when molten rock cools and solidifies. Igneous rocks have different textures and this is because the texture is determined by how quickly the rock cools down. The rocks that tend to be near the surface cool faster than the rocks that are not close the the surface.

Stitching of the large tissue that acts as a tendon and attaches muscles to bone is called what?

Answers

If it's not a tendon, then I'm pretty sure it's a ligament.
The correct answer is Arthrodesis.

Which of the fayum primates may be linked to the platyrrhines as evidenced by the presence of three premolars?

Answers

The appropriate response is parapithecids. The parapithecids are the most primitive of the higher primates. Its primitive highlights incorporate its dental equation which is the same as New World Monkeys. From this, we may derive that it is the primitive dental equation of every single higher primate and that it pre-dated the split between Old World and New World monkeys.

The mother of a 10-year-old boy with mild scoliosis asks the nurse, "how long will my son have to continue his exercises before he's better?" how should the nurse respond?

Answers

The mother of a 10-year-old boy with mild scoliosis asks the nurse, "how long will my son have to continue his exercises before he's better?" how should the nurse respond?

Do you need insulation wrapped around your fractional distillation apparatus?

Answers

Insulation releases heat, which causes molecules to move more quickly because they have more kinetic energy. Because the condenser must be cool for the vapor to transform back into a liquid.

What is Insulation wrap?

The less volatile compounds, like bitumen, require a lot of energy to break down, thus they are towards the bottom of the distillation process.

Insulation would cause these compounds to vaporize, making it difficult to tell whether they are at the bottom or top because heat causes things to vaporize.

To control heat gain or loss, HVAC ductwork is encased in duct insulation wrap. It is made up of aluminum foil, joined glass fibers, and a tough (brown or white) Kraft paper face layer that are all held together by a.fractional distillation apparatus.

Therefore, insulation wrapped around your fractional distillation apparatus.

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In eukaryotic cells, each stage of cellular metabolism generates a different net amount of atp. which stage directly generates the greatest number of atp molecules per metabolized glucose molecule?

Answers

Electron transport chain and ATP synthase

In a living organism to sustain itself several process that occur is called as cellular metabolism.

Cellular metabolism utilizes reactants like food and nutrients to produce energy.

In the process of cellular metabolism electron transport chain generates the greatest number of ATP molecules per metabolized glucose molecule.

ETC is a complex buried in mitochondrial layer to transport NADH and FADH₂.

It is the ultimate step of cellular respiration and delivers most ATP molecules.

From one molecule of glucose 38 ATP molecules are created.

Therefore, Electron transport chain with the help of ATP synthase generates the greatest number of ATP molecules.

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According to Mendel's _______________, one copy of a gene is passed randomly from each parent to their offspring. This is why gametes have half the usual number of chromosomes. The ______________ states that different genes are not connected. In other words, the gene for eye color is not influenced by, nor does it influence, the gene for hair color. This allows gametes to form with a random mixture of traits. The cell division that creates gametes according to these principles is known as __________.

Answers

According to Mendel's Law of segregation, one copy of a gene is passed randomly from each parent to their offspring. This is why gametes have half the usual number of chromosomes. The Law of independent assortment states that different genes are not connected. In other words, the gene for eye color is not influenced by, nor does it influence, the gene for hair color. This allows gametes to form with a random mixture of traits. The cell division that creates gametes according to these principles is known as meiosis.

Answer:

Law of Inheritance law of assortment meiosis. 

Explanation:

Gregor plant scientist, through his work on pea plants, discovered the elemental laws of inheritance.

He deduced that genes are available in pairs and area unit heritable as distinct units, one from every parent. Plant scientist half-tracked the segregation of parental genes and their look within the offspring as dominant or recessive traits.

The Principle of freelance Assortment describes however completely different genes severally cut loose each other once generative cells develop. The freelance assortment of genes and their corresponding traits was initially ascertained.

Where is the usual site of cervical dysplasia or cancer in situ?

Answers

Answer:

The squamous epithelium of the vagina meets the columnar epithelium of the vagina.

Explanation:

genomics can be used in agriculture to?

Answers

It is used to generate new hybrid strains, improve disease resistance, and improve yield.

I hope this helps.

Genomics is used for producing genetically modified plants with better nutritional value.

What are genetically modified plants?

In recent years, and still, today, genetically modified (or GM) plants have garnered a lot of media interest. Considering this, the wider populace still doesn't fully understand what a GM plant is or the benefits and drawbacks of the technology, especially in light of the variety of uses it may be put to.

Harm to the environment and risk to human health are the two primary areas of concern from the first generations of GM crops. There may be growing public worry about potential health risks when GM plants are gradually brought into the European Union.

Although "health campaigns" by the press are increasingly ubiquitous, the information they disseminate is frequently erroneous and inaccurate in light of the existing scientific data. Since doctors are frequently the first people a worried patient consults, we believe it is critical that they are knowledgeable about the state of the art and capable of giving an educated opinion.

Therefore, Genomics is used for producing genetically modified plants with better nutritional value.

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What is the final product of the Calvin cycle

Answers

The answer is glucose

The function of the Calvin cycle is to take CO2 from the air and bond it together to form the molecules that will make the sugar glucose. This process is called carbon fixation . The actual result of the Calvin cycle is not glucose, a 6-carbon sugar, but another molecule called G3P. G3P is an abbreviation for glyceraldehyde-3-phosphate. This molecule is later converted by other chemical reactions into glucose.

It was in my lesson.

Hypothesis: Explain how carbon dioxide (CO2) cycles in aquarium water through snails and Elodea. If I add a snail and elodea to the test tube with bromthymol blue then ............... because ............. ????

Answers

What will happen is the water will turn yellow in light circumstances and/or in gloomy circumstances. This product will happen because Snails will create only carbon dioxide, while the Elodea will generate carbon dioxide and oxygen gas. The prediction is that the snails and Elodea will generate more carbon dioxide, producing the water to turn yellow.

Final answer:

If a snail and elodea are added to bromthymol blue, color changes could indicate shifts in CO2 levels from snail respiration and elodea photosynthesis. This interaction illustrates the dynamic carbon cycle in an aquatic environment, which can be influenced by factors such as dissolved organic carbon and ocean acidification.

Explanation:

If I add a snail and elodea to the test tube with bromthymol blue, the color of the solution might change because of the processes of respiration and photosynthesis altering the CO2 concentration. Snails, through the respiration process, produce CO2, which dissolves in water, reacting with water molecules to form bicarbonate ions (HCO3-). Elodea, a type of aquatic plant, uses these bicarbonate ions and CO2 for photosynthesis, which reduces the CO2 concentration in the water and can cause the bromthymol blue to change color indicative of a decrease in acidity.

Experiments such as Calvin's have shown how organisms like algae absorb carbon from solutions containing bicarbonate ions. In aquatic ecosystems, the carbonate chemistry is vital because some organisms use bicarbonate ions and calcium ions to build structures like shells; an example is the process where seawater calcium reacts with bicarbonate to form calcium carbonate (CaCO3), a major component of marine organism shells. However, increasing levels of atmospheric CO2 can lead to ocean acidification, negatively affecting the ability of organisms to produce these shells.

The presence of living organisms like snails and elodea in the aquarium water impacts the carbon cycle by interacting with dissolved organic carbon (DOC) and influencing the availability of CO2 for photosynthetic activity. The introduction of elodea to an environment with snails in a bromthymol blue solution would likely demonstrate the dynamic nature of the carbon cycle in an aquatic microcosm, visualized through color change as CO2 levels shift due to biological activity.

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Which of the following reasons explains why electrical cords are plastic coatings with metal wires on the inside? A.Both plastic and metal have high electrical conductivity. B.Both plastic and metal have low electrical conductivity. C.Plastic has high electrical conductivity, and metal has low electrical conductivity. D.Plastic has low electrical conductivity, and metal has high electrical conductivity

Answers

The answer is D because, and because of the fact that plastic has low electrical conductivity, makes the electrical cord safe to handle when in use. It's like a barrier between whatever the cord is touching, and the wires inside.

The following reasons explains that electrical cords are plastic coatings with metal wires on the inside is Plastic has low electrical conductivity, and metal has high electrical conductivity, option "D" is correct.

Explain why Plastic has low electrical conductivity?

Because of the fact that plastic has low electrical conductivity, makes the electrical cord safe to handle when in use.

It's like a barrier between whatever the cord is touching, and the wires inside.

Thus, option "D" is correct, Plastic has low electrical conductivity, and metal has high electrical conductivity.

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Gentoo penguins will present a mate with a pebble that they find to attract a mate. Emperor penguins have a specific call and movement that they make to attract a mate. Which type of isolation do these penguins demonstrate?
temporal isolation
behavioral isolation
geographical isolation
anatomical isolation

Answers

The answer is B behavioral isolation, I just took the test :)

Answer: Behavioral isolation

Explanation: edge 2023

How does tobacco smoke affect the body? A. It blocks hemoglobin from binding to carbon dioxide, thus affecting gas exchange in the lungs. B. It paralyzes cilia in the bronchi allowing inhaled particles to enter the lungs. C. It causes an increase in heart rate and blood pressure. D. all of the above

Answers

All of the above, every answer is true
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