Two genes (A and B) are 20 map units apart on the same chromosome. Two parents with genotypes AABB and aabb mate to produce an F1 individual. The F1 individual has genotype AaBb which can be written as shown below since the A and B genes are genetically linked.

The F1 individual can make the following types of gametes: AB, Ab, aB, ab. Of these four gametes, which one(s) are recombinant types?

Answer
a.
AB and Ab
b.
Ab only
c.
AB and ab
d.
Ab and aB

Question

Two genes (A and B) are 20 map units apart on the same chromosome. Two parents with genotypes AABB and aabb mate to produce an F1 individual. The F1 individual has genotype AaBb which can be written as shown below since the A and B genes are genetically linked.

The F1 individual can make the following types of gametes: AB, Ab, aB, ab. Of these four gametes, which one(s) are recombinant types? 




Answer
	 a.	
 AB and Ab
	 b.	
Ab only
	 c.	
AB and ab
	 d.	
Ab and aB