HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Black hair, long hair
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Black hair, short hair
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White hair, long hair
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White hair, short hair
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Detailed explanation-1: -So, the correct option is ‘1:2:2:4’.
Detailed explanation-2: -Short hair is dominant which means it can express in both heterozygous(Hh) and homozygous condition(HH). If all the progeny have short hair, then the parents should have been either: HH x HH OR HH x Hh OR HH x hh.
Detailed explanation-3: -In Guinea pigs, the genotype (BB) is black, and the genotype (bb) is white color, and (Bb) is grey color, The gene (B) and (b) are sex-linked.
Detailed explanation-4: -Black hair(G) is dominant over white hair(g) in guinea pigs. A heterozygous black, straight-haired guinea pig is mated with a white, heterozygous curly-haired guinea pig.
Detailed explanation-5: -Examples: If we see a white guinea pig, it’s genotype must be “bb".