Question 22
(Multiple Choice)
Recombination has occurred between the chromosome segments shown in Figure 6-40.The genes A and B, and the recessive alleles a and b, are used as markers on the maternal and paternal chromosomes, respectively.After alignment and homologous recombination, the specific arrangements of A, B, a, and b have changed. 
Figure 6-40
Which of the choices below correctly indicates the gene combination from the replication products of the maternal chromosome?
A)AB and aB
B)ab and Ab
C)AB and Ab
D)aB and Ab
Answer