Translocation and crossing over are both processes through which the genetic var

Question

Translocation and crossing over are both processes through which the genetic variation of a population is increased. Which of the following is true?

A.In crossing over, each offspring cell contains less than the full complement of genes, and in translocation, each offspring cell contains more than the full complement of genes.

B.nIn crossing over, the exchange of genetic information always occurs between homologous chromosomes, and in translocation, the exchange of genetic information can occur between nonhomologous chromosomes.

C. In crossing over, all genes in the offspring are shuffled to different locations, and in translocation, all genes in the offspring are positioned in the same location.

D. In crossing over, all of the offspring are always viable, and in translocation, at least one of the offspring is not viable.

Explanation / Answer

The corect answers are options B and D.

B.In crossing over, the exchange of genetic information always occurs between homologous chromosomes, and in translocation, the exchange of genetic information can occur between nonhomologous chromosomes.

D. In crossing over, all of the offspring are always viable, and in translocation, at least one of the offspring is not viable.

Chromosomal crossing over is a natural process in the development. Whereas chromosome translocation is an abnormality. It can translocate a vital gene segment and make an offspring deficient of a vital gene segment which may cause the death of the offspring.

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