1. Which of the following is (are) a cause, or mechanism, of evolution but without causing a change in the nucleotide sequences of a gene or the DNA in chromosomes? A. Nondisjunction of chromosomes only B. Crossing over of chromosomes only C. Loosening of DNA structure only D. gene mutations only E. B and C
Added by Mallory B.
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Step 1: Crossing over during meiosis can shuffle genetic material between different chromosomes, resulting in new combinations of alleles that were previously on different chromosomes. Show more…
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