HEREDITY
CODOMINANCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
If an organism with a homozygous dominant trait was mated in a test cross, all the F1 offspring would be
|
|
homozygous dominant
|
|
|
homozygous recessive
|
|
|
heterozygous
|
|
|
50% homozygous;50% heterozygous
|
Explanation:
Detailed explanation-1: -They are called incomplete dominance.
Detailed explanation-2: -To identify whether the F1 hybrid is homozygous or heterozygous (hybrid), we can use a test cross with the first generation. In a test cross, a cross takes place in between a homozygous recessive trait and an unknown genotype (homozygous or heterozygous).
Detailed explanation-3: -The answer is 50%. Assume that the homozygous recessive trait is denoted by aa and the heterozygote is Aa.
Detailed explanation-4: -If all of the offspring produced express the dominant trait, the individual in question is homozygous for the dominant allele.
There is 1 question to complete.