Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice
The proportion of monohybrids in the F2generation of a monohybrid cross _________ proportion of dihybrids in the F2generation of a dihybrid cross
Options:
Answer:
B
Solution:
In a monohybrid cross, there are two monohybrids out of total of four offsprings. (AA: Aa: aa =1 :2 :1). Thus their proportion is 50%. In a dihybrid cross, there are four dihybrids out of total sixteen offsprings. (AABB: AAbb: aaBB: aabb: AaBB: AABb: Aabb: aaBb : AaBb = 1 : 1 : 1 : 1 : 2 : 2: 2 : 2 : 4). Thus their proportion is 25%.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses
⏱ 2mℹ️ Source: PYQ_2020
Doubts & Discussion
Loading discussions...
