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KVPY 2020-21 SA Exam Previous Papers
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Question : 79
Total: 80
In a breed of dog, long-haired phenotype is recessive to short-hair. In a litter one pup is short haired and its sibling is long-haired. Consider the following possible phenotypes of the parents.
i. Both parents are short-haired
ii. Both parents are long-haired
iii. One parent is short-haired and one is long-haired
Choose the CORRECT combination of the possible parental phenotypes.
i only
ii only
iii only
i or iii
Validate
Solution:
Long haired dog = l l
Short haired dog = L L
One pup is short haired that can be = L L or L l and its sibling is long haired = l l
So parent can be either
So both (i) and (iii) are possible
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