In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1.

In F Generation A Ratio Of 1 4 Biology Question

In F₂ generation, a ratio of 1 : 4 : 6 : 4 : 1 is obtained instead of 9 : 3 : 3 : 1. It indicates

Options

(a) incomplete dominance
(b) qualitative inheritance
(c) quantitative inheritance
(d) all of the above

Correct Answer:

quantitative inheritance

Explanation:

Quantitative inheritance is a type of inheritance controlled by one or more genes in which the dominant alleles have cumulative effect with each dominant allele expressing a part or unit of the trait, the full trait being shown only when all the dominant alleles are present. In quantitative inheritance the number of phenotypes is 3(1:2:1) when one polygene pair, 5(1:4:6:4:1) when two polygene pair and 7(1:6:15:20:15:6:1) when three polygene pairs are involved.

Related Questions:

  1. Hill reaction occurs in
  2. Which of the following is radially symmetrical
  3. In photosynthesis oxygen comes from
  4. From a diploid condition of 2N, which condition can arise due to non-disjunction
  5. Cytochromes are found in:

Topics: Genetics (204)
Subject: Biology (4253)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*