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

ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice

What will be the distribution of phenotypic features in the first filial generation if a cross is carried out between a homozygous female and a heterozygous male for a single locus?

Options:

Answer:
D
Solution:

If a homozygous female AA or aa is crossed with heterozygous male Aa for a single locus then the phenotype of the progeny will show both the traits. If the female parent is AA than all the progeny will have dominant phenotype  1 : 0  and if the female parent is aa than it is a test cross and the phenotypic ratio is 1 : 1.

Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses
⏱ 2mℹ️ Source: PYQ_2020

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