Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationTest CrossEasy2 minPYQ_2020
ZoologyEasysingle choice
Observe the four crosses given below:
TTrrttRR
TtRrttrr
TtRrTTrr
TtrrttRr
In which of the following crosses, 1: 1: 1: 1 ratio of progenies is obtained?
Options:
Answer:
C
Solution:
1:1:1:1 is a dihybrid test cross phenotypic ratio. It is obtained when crossing is done between a hybrid and a recessive genotype when two gene locus is considered simultaneously.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Test Cross
⏱ 2mℹ️ Source: PYQ_2020
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