Crossing over refers to the exchange of genetic material between two homologous chromosomes. Which of the following statements about this event is correct?
a) Crossing over is more likely to occur between two genes that are widely separated on the chromosomes.
b) Crossing over is more likely to occur between two genes that occur next to each other on a chromosome.
c) Crossing over is more likely to occur with recessive alleles than with dominant ones.
d) Both a) and c) are correct.
e) Both b) and c) are correct.
Ans: a) Crossing over is more likely to occur between two genes that are widely separated on the chromosomes.
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