Question

Who discovered that Barr body is formed from X-chromosome

• A. Barr and Bertram
• B. Lyon
• C. Sharp and Roberts
• D. Ohno and Hanschka

Answer 1

The correct option is A Barr and Bertram

A Barr body (named after discoverer Murray Barr) is the inactive X chromosome in a female somatic cell, rendered inactive in a process called lyonization, in those species in which sex is determined by the presence of the Y (including humans) or W chromosome rather than the diploidy of the X.

So, the correct answer is 'Barr and Bertram.'