Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice
What proportion of offsprings in thegeneration of a tetrahybrid cross will resemble the phenotype of parents that produce the F1 hybrid?
Options:
Answer:
A
Solution:
The total number of offsprings in the F2generation is represented by 4n, where n = 1 for monohybrid, n = 2 for dihybrid, etc. Thus the total number of offsprings in the F2generation of tetrahybrid cross is 44 = 256. Out of these only two offsprings will resemble the parents genotypically. Thus their proportion is 2/256, which is 1/128.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses
⏱ 2mℹ️ Source: PYQ_2020
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