Biology, 10.04.2020 16:51 dndndndnxmnc

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

A- Non-disjunction and mitosis.
B- Cytokinesis and cloning.
C- Crossing over and independent assortment.
D- Asexual reproduction and binary fission.

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Billy and Johnny are brothers, but they do not look alike. Which one of the following pairs of facto...