Which of the following accurately explains why human siblings differ in appearance from one another? A). each of them inherits a unique member of chromosomes.
B). gametes have higher rates for mutations, which allow for more genetic diversity.
C). alleles are interchanged during meiosis, which results in genetically distinct offspring.
D). genes are rearranged during mitosis, which results in new combinations of chromosomes.

C

Explanation:

About the options:

A) That's not true. Every human been inherits the genes from it's parents.  

B) That's not true. Gametes have no higher tendency for mutation, that could be dangerous: if a deletirous mutation appears, the organism could die. Mutations don't happen for a purpose, so, mutate can be extremaly bad - and usually is.

C) That's true. One of that interchangends is the crossing-over: nearby chromosomes exchanges parts. It happens in the beginning of meiosis.

D) That's not true. Mitosis is a procedement of cloning cells. If a new combination happen, then we have a mutation and the cell will be probably killed.

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