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3 years ago

Define mutagen and describe how mutagens are used in genetic research.

Biology

1 answer:

Salsk061 [2.6K]3 years ago

3 0

A mutagenic agent is any chemical, physical or biological compost that can induce a mutation in the cell's DNA, making this mutation pass to the next generation.

Mutagenic agents are widely used in the fields of biotechnology, genetic engineering, medicine and agroindustry. This is because these agents have helped in the advancement and development of new technological tools.

In genetic research some bacteria and viruses are used by agribusiness companies to obtain transgenic beings. These mutagenic (biological) agents act as vectors of laboratory-created genes that will insert these genes into an organism to be modified. It could be, for example, a gene that will improve maize resistance against a pest. Thanks to mutagenic agents, this genetic information can be passed on to the organism, in this case, the plant.

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In the heart, the valves are located between atria and ventricles and between ventricles and arteries (option D).

<h3>What are valves in the heart?</h3>

Valves are membranous partitions which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction.

Valves in the heart enforce a one-way blood flow through the heart and separate atria from ventricles, and ventricles from the large arteries that leave them.

The four valves in the heart and their location is as follows:

tricuspid valve: located between the right atrium and the right ventricle
pulmonary valve: located between the right ventricle and the pulmonary artery
mitral valve: located between the left atrium and the left ventricle
aortic valve: located between the left ventricle and the aorta.

The valves between the atria and ventricles are called atrioventricular valves or cuspid valves while those at the bases of the large vessels leaving the ventricles are called semilunar valves.

Therefore, it can be said that the valves of the heart are located between atria and ventricles and between ventricles and arteries.

Learn more about valves of the heart at: brainly.com/question/28266922

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2 years ago

A doctor is exploring some tissue with a blunt probe. She notices that the tissue is white and fatty and seems to be concentrate

MrMuchimi

The answer should be C if I'm not wrong

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3 years ago

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Pollen is produced by the process of

MariettaO [177]

Answer:

Pollen is produced during the pollen formation cycle of a flower.

Explanation:

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3 years ago

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When pure black hamsters were mated with pure white hamsters, all of the offspring were black. The trait for white coloration wo

Tems11 [23]

Answer:

A. Recessive

Explanation:

have a good day!!

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3 years ago

Each cell has a structure that separates the inside of the cell from.the environment. What cell is this?

kotykmax [81]

Answer:

Either the cell wall or the cell membrane.

Explanation:

All cells have cell membranes which line the outside of the cell, and some cells have cell walls, which also line the outside of the cell. Since all cells have cell membranes I am inclined to believe that the correct answer would be cell membranes.

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3 years ago