Get Answers to all your Questions

header-bg qa

Which of the following statements is true regarding the Lyon Hypothesis?

Option: 1

The Lyon Hypothesis explains the formation of Barr Bodies.

Option: 2

The Lyon Hypothesis explains how dosage compensation occurs in males.

Option: 3

The Lyon Hypothesis proposes random X chromosome inactivation in females.

Option: 4

The Lyon Hypothesis explains the formation of Y chromosomes.

Answers (1)


According to Mary Lyon's Lyon Hypothesis, one of the two X chromosomes is randomly inactivated in each cell during early embryonic development in female mammals. This procedure ensures that the dosage of X-linked genes in males and females is equal. Option c is hence the proper statement. Option an is inaccurate because it refers to the creation of Barr Bodies as a result of the Lyon Hypothesis. Option b is wrong since it pertains to dose compensation in males, which the Lyon Hypothesis does not govern. Option d is erroneous because the Lyon Hypothesis does not explain how Y chromosomes are formed.

Option 3 is the correct answer. 


Posted by

Shailly goel

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks