The single chromosomes (chromatids) have two colors (ex: yellow and purple) during the cells alive animation. What does this represent?

A. genetic information from both the father and mother

B. an error in tetrad formation

C. the exchange of genetic information between sister chromatids
(crossing over)

D. the sharing of centromeres that occurs during prophase

The answer is the exchange of genetic information between sister chromatids (crossing over) so C

C. the exchange of genetic information between sister chromatids (crossing over)

the answer for apex is "1 and 6"

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.

hope this   and an i get brainlsiest