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Nuetrik [128]
3 years ago
11

What is a mutagen ????????

Biology
2 answers:
mash [69]3 years ago
5 0

Answer:  

A mutagen can be defined as the agent which can be physical or chemical that changes DNA of an organism in such a way that the frequency of mutation increases.

This does not means that all the mutations are caused by mutagens. There are many more reasons for the mutation to take place in the body.

The mutagens can be any physical or chemical agent which can affect the DNA. The x-rays, UV rays and some chemicals are mutagens that increases the chances of mutation in body.

Orlov [11]3 years ago
4 0

an agent, such as radiation or a chemical substance, which causes genetic mutation.

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During glycolysis, two hydrogen atoms are picked up by the coenzyme nicotinamide adenine dinucleotide (NAD). What B vitamin is r
Maslowich

Answer:

Niacin (Ans. A)

Explanation:

Nicotinamide adenine dinucleotide (NAD) is known as important cofactor which help in carrying electrons from one reaction to another reaction in the cellular respiration process.

Cells are able to restore performed compounds which are containing a pyrimidine base precursor vitamin for the synthesis of NAD: nicotinamide, nicotinic acid, and nicotinamide riboside.

These elements are taken up from the diet whos containing vitamin B3. Nicotinamide, and nicotinamide riboside both can be absorbed from the gut. Niacin or vitamin B3 also produced within cells with the help of cellular digestion of NAD+.

7 0
3 years ago
What is the likely long-term consequence of an increase in the relative percent of greenhouse gases in Earth’s atmosphere?
kvv77 [185]

Correct answer: A). Earth’s average temperature will increase.

Green house gases are those gases, which are present in the air that have the ability to trap heat of the earth's surface. Gases like carbon dioxide and methane are  known to be found naturally play an important role in earth's climate. If they are not found the earth' s climate would be too cold creating problem for survival of life on the earth.

They absorb and emit the radiation in the thermal infrared range. These gases act like a blanket and save earth surface from infrared radiation by absorbing them and prevent them from escaping out of the earth surface.

But due to increased in the concentration of green house gases like carbon dioxide and methane in the environment due to pollution and deforestation is causing a great problem, which result in a global warming, which is a great concern for all the people on the planet. It will increase the annual global temperature which will result in the melting of glaciers. So, the issue of global warming should be taken seriously and adequate measure should be taken to control it.









6 0
3 years ago
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Establish a relationship between the systems, bone and muscle, that is, how the two systems must necessarily act together.
wolverine [178]

Answer:

Our bones support us and allow us to move. Muscles pull on the joints, allowing us to move. Our bones help hold our bodies in place. They need eachtoher. The muscles need the bones for stability.

Explanation:

7 0
3 years ago
How are the processes of asexual reproduction and sexual reproduction different? Soled three tions
Solnce55 [7]

Answer:

<em>Only one process involves sperm and eggs</em>

5 0
3 years ago
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People continue to have strong opinions triggering ongoing debates about stem cell research. Organize the points as either the p
JulsSmile [24]

Answer:

<u>Pro:</u>

May hold answers to cure various diseases including Alzheimer's and Parkinson's - these may be answers to various diseases that are not able to cure.

Requires a small number of cells because of the fast replication rate - these are able to produce a high amount of cells in the lab as they are able to replicate faster.

Medical benefits such as regenerating organ tissue and therapeutic cell cloning

<u>cons:</u>

ethical controversy over use of stem cells from lab fertilized human egg - there is an ethical controversy around the use of lab fertilized human egg

unproven treatments often come with high rejection rates - these researches provide uncertain results and not tested and easily affected so the rate of rejection is high

The cost can be prohibited for many patients - these require high cost and can not be in the budget of every patient.

8 0
2 years ago
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