OBJECTIVE LIFE SCIENCE
GENETICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following is homozygous dominant?
|
|
Yy
|
|
|
Y
|
|
|
yy
|
|
|
YY
|
Explanation:
Detailed explanation-1: -yy is the homozygous dominant genotype (2 y alleles). The phenotype of this genotype is green seed color. The types of gametes produced by each individual depends on its genotype. So, a YY genotype can only produce gametes with Y alleles.
Detailed explanation-2: -That can be either AA or aa, homozygous dominant or homozygous recessive. An individual who is homozygous dominant for a particular gene will have two dominant “A” alleles for that gene. An individual who is homozygous recessive will have the “aa” genotype, two recessive “a” alleles.
Detailed explanation-3: -So, the correct answer is ‘TT and tt’.
There is 1 question to complete.