Question

Which genotype below represents a dihybrid individual? A:bbee B:BBee C:BbEe D:bbEE

Answer 1

Option C, BbEe

Step-by-step explanation:

In a dihybrid cross, following is essential -

a) Alleles for two different traits must be involved

b) The genotype of crossing parents must be heterozygous for both the traits.

For example –

Let us say the two different traits are – seed color and shape.

“G” represents allele for dominant green color pea and “g” represents allele for recessive yellow color peas.

Also “S” represents allele for dominant smooth pea and “s” represents allele for recessive wrinkled pea

Now a dihybrid parent will have following genotype –

GgSs

Hence, option C is correct

Answer 2

Dihybrid is by definition a heterozygous hybrid for alleles of two different genes.
Dihybrid is a result of crossing of two organisms that would result to two traits. In this case, among the choices given, the dihybrid would have to be :BbEe. Thus, the answer to this problem is C.