During which cell cycle phase(s) are chromosomes composed of two DNA molecules?

A) G2
B) G1
C) anaphase
D) Answers (A) and (B) are correct.
E) Answers (A), (B), and (C) are correct.


A

Biology & Microbiology

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Uplift and formation of a mountain range divide a freshwater snail species into two isolated populations. Erosion eventually lowers the mountain range and brings the two populations together again, but when they mate, the resulting hybrids all produce

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