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LekaFEV [45]
2 years ago
7

Billy and Johnny are brothers, but they do not look alike. Which one of the following pairs of factors contributed to this genet

ic variation?
A- Non-disjunction and mitosis.
B- Cytokinesis and cloning.
C- Crossing over and independent assortment.
D- Asexual reproduction and binary fission.
Biology
2 answers:
Kitty [74]2 years ago
7 0

Answer:C

Explanation:

jekas [21]2 years ago
4 0

Answer:

C- Crossing Over

Explanation:

Crossing over is essentially the gene shuffling and swapping around of genetic information.

A- is false because mitosis describes the building of nonsexual cells. So in terms of genetics, meiosis is the one you're looking for in this scenario.

B- Brothers are not clones.

D- Your parents had to have sex to produce a child. This is not Asexual.

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