Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice
The recombinant phenotypic and genotypic ratio in F2obtained from parental cross having genotypes TTRR x ttrr will be
Options:
Answer:
D
Solution:
9:3:3:1 is the phenotypic ratio obtained in a dihybrid cross. Among these offsprings, 6 show recombinant phenotype in the ratio of 3:3. 9 and 1 represent the parental phenotype. The genotypic ratio for dihybrid cross will be:
TTRR:TtRR:TTRr:TtRr:TTrr:Ttrr:ttRR:ttRr:ttrr :: 1:2:2:4:1:2:1:2:1
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses
⏱ 2mℹ️ Source: PYQ_2020
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