There is a picture attached.
what is the genetic benefit of the process below?
a. it creates new combinations of genes on a chromosome and leads to variation.
b. it increases the likelihood that an organism will survive in a new environment.
c. it results in the conservation of parental genes to offspring.
d. there is no benefit; it is often a disastrous event.

A. It creates new combinations of genes on a chromosome and leads to variation.

Explanation:

The image above shows the occurrence of the genetic process known as "crossing-over". During this process, the chromatids that are nearby exchange pieces among themselves, making possible the emergence of new types of gametes, which are called recombinant gametes, as you can see in the image.

Descendants generated from recombinant gametes are also called recombinant descendants. Therefore, even for double-heterozygous individuals that have genes located on the same chromosome, there is the possibility of formation of four types of gametes. However, as the occurrence of crossing-over is not the rule, the proportion of these gametes and also of descendants will not be the same.

The advantage of crossing over is that it combines new genes on a chromosome and leads to variation.

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hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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