The correct option is A ie the process whereby non-sister chromatids exchange genetic material
- Between prophase I and metaphase I, a process known as crossing over occurs in which two homologous non-sister chromatids join up and exchange various pieces of genetic material to create two recombinant chromosome sister chromatids.
- When genetic material is switched between two chromosomes, this process is known as crossing over.
- It is in charge of causing genetic variation among members of a species.
- Only the reproductive cells known as gametes undergo this process.
- The steps involved in crossing over are as follows:
1) Synapsis.
2) Chromosome duplication
3) Crossing over.
4) Terminalizataion.
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I wanna say it’s b but if not I’m so sorry !
Answer:
Heritability is important for natural and artificial selection because a trait must be heritable for them to take place. ... Variations that exist in every population are the basis for natural selection. The differences in organisms come from different genetic material.
Explanation:
carbohydrates
fats
proteins
fiber
vitamins
water
Minerals
Explanation:
Food is complex of different minerals. These minerals helps to meet our body demand for materials important for sustenance.
There are different classes of food based on their chemical properties and functions. These classifications are based on the complex nutritive substances that can be derived from them.
- Carbohydrates supplies energy to the body.
- Proteins also provides energy and it helps to repair worn out body tissues.
- Fibers are needed to aid digestion
- Vitamins provides enzymes for the body
- water is an essential life compound.
- Minerals are used for several metabolic processes and they are good electrolytes in the body.
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Answer:
Explanation:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. As a result, the amount of carbon dioxide in the atmosphere is rapidly rising.
