Q2 / 180 · AIIMS 2001 · Botany

Barr body is found in the cytoplasm during

  • Correct answer
    A
    interphase in cell of female mammal
  • B
    interphase in cell of male mammal
  • C
    prophase in cell of female mammal
  • D
    prophase in cell of male mammal.

Solution

Barr body is also known as sex chromatin, $\mathrm{X}$ chromatin. Barr body is partially inactivated and development of this facultative heterochromatin occurs in one of the two $\mathrm{X}$ chromosomes in interphase nuclei. Any of the two $\mathrm{X}$-chromosomes can become heterochromatic.

Hence, the correct answer is option: 'A'.

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