F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1: 2: 1. It represents a case of:

  • Option 1)

    Co-dominance

  • Option 2)

    Dihybrid cross

  • Option 3)

    Monohybrid cross with complete dominance

  • Option 4)

    Monohybrid cross with incomplete dominance

 

Answers (1)
V Vakul

 

The conclusion from Punnett square -

All F1 are tall and in F2 3/4th of the plants are tall.

- wherein

Thus, phenotypic ratio of 3/4th tall: (1/4TT + 1/2Tt) and 1/4th tt, i.e 3:1 ratio but the genotypic ratio of 1:2:1

 

 fig 1

 

Monohybrid cross with incomplete dominance shows both genotypic and phenotypic ratio as same (1 : 2 : 1).


Option 1)

Co-dominance

Incorrect option

Option 2)

Dihybrid cross

Incorrect option

Option 3)

Monohybrid cross with complete dominance

Incorrect option

Option 4)

Monohybrid cross with incomplete dominance

correct option

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Subscription)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout JEE Main April 2021

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout JEE Main April 2022

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 34999/- ₹ 24999/-
Buy Now
Knockout BITSAT 2021

It is an exhaustive preparation module made exclusively for cracking BITSAT..

₹ 4999/- ₹ 2999/-
Buy Now
Exams
Articles
Questions