From a cross A A B b × a a B b , the genotypes A a B B : A a B b : A a b b : a a b b are obtained in ratio

For the cross of the parents with genotypes - AABb and aaBb, the following progeny genotypes are obtained. AB Ab Ab AABb AAbb Ab AABb AAbb Thus, the genotypes A a B B : A a B b : A a b b : a a b b will have the ratio - 1 : 2 : 1 : 0.

Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020

ZoologyEasysingle choice

From a cross $A A B b \times a a B b,$ the genotypes $A a B B : A a B b : A a b b : a a b b$ are obtained in ratio

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Answer:

Solution:

For the cross of the parents with genotypes - AABb and aaBb, the following progeny genotypes are obtained.

	AB	Ab
Ab	AABb	AAbb
Ab	AABb	AAbb

Thus, the genotypes $A a B B : A a B b : A a b b : a a b b$ will have the ratio - $1 : 2 : 1 : 0.$

Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses

⏱ 2mℹ️ Source: PYQ_2020

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