The following question has two parts. First, answer Part A. Then, answer Part B. The diagram shows four possible genetic arrangements of a cell that contains two chromosomes during metaphase.

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Part A:

What is the diagram MOST LIKELY demonstrating?

A
Mutation

B
Crossing over

C
Random fertilization

D
Independent assortment

Part B:

Which statement BEST supports the choice made in Part A?

A
The diagram shows four daughter gametes that have exchanged genetic information between chromatids.

B
The diagram shows four unique gametes that are the result of receiving one random allele from each parent.

C
The diagram shows four unique gametes that are the result of two chromosomes separating in different ways.

D
The diagram shows four daughter gametes that incorrectly contain fewer chromosomes than the parent cells.