Reproductive Health · Class 12 · CBSE · Science Biology
What is the dark-staining heterochromatic mass (representing an inactivated X-chromosome) present in interphase somatic cell nuclei of human females…
Practice question from Reproductive Health (Class 12 · CBSE · Science Biology), with the correct answer and a step-by-step solution.
medium · MCQ · Q-32C3DE
What is the dark-staining heterochromatic mass (representing an inactivated X-chromosome) present in interphase somatic cell nuclei of human females but absent in males?
- A.Barr bodyCorrect answer
- B.Centrosome body
- C.Polar body
- D.Acrosome body
Solution
Formed by Lyonization, the number of these bodies equals (Total X chromosomes - 1).
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