LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If one parent has blue eyes and one parent has green eyes, the offspring will definitely have blue eyes.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Yes. The parent with the green eyes most likely has the recessive gene for blue eyes. Their own eyes show up as green as green is dominant. parents pass on only one gene to their children and would therefor have passed on the gene for blue eyes.

Detailed explanation-2: -A couple’s children can have almost any eye color, even if it does not match those of either parent. Currently it is thought that eye color is determined by about six genes, so you can imagine how inheritance of eye color becomes very complicated.

Detailed explanation-3: -Baby blue eyes depends if it receives blue alleles from both the parents. Since blue is recessive and there is no dominant allele, the child will have blue eyes. The child will have green eyes if it receives green alleles from both the parents or one green and one blue allele.

Detailed explanation-4: -If the brown-eyed mother carried the green allele (bG), she could pass the green allele on 50% of the time, so when married up with the father’s blue allele, they could have a green-eyed child.

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