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

ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice

Pure tall pea plant with round seeds is crossed with pure dwarf pea plant with wrinkled seeds. The probability of genotype ttRR inF2generation is

Options:

Answer:
A
Solution:

Mendelian dihybrid cross occurs between two pair of contrasting characters - height of plant and shape of seed. When these are crossed in theF2generation we get the following genotypes and their count:

TTRR – 1, TTRr – 2, TTrr – 1, 

TtRR – 2, TtRr – 4,

 Ttrr – 2, ttRR – 1, 

ttRr -2 and ttrr -  1

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

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