genetics test 2 ch17 hw

A recombinant chromosome is one that has been derived from a crossover andcontains a combination of alleles that is different from the parental chromosomes. Arecombinant chromosome is a hybrid of the parental chromosomes.

First, gene rearrangement of V, D, and J domains occurs within the light- and heavy-chain genes. Second, within a given B cell, different combinations of light and heavy chains are possible. And third, imprecise fusion may occur between the V, D, and J domains.

• Transposable elements are mutagens, because they alter (disrupt) the sequences of
• chromosomes and genes within chromosomes. They do this by inserting themselves into genes.