Question

Disjunction is

• A. Chromosome separition during interphase
• B. Chromosome separation during prophas I
• C. Chromosome separation in anaphase I
• D. Chromosome separation duri metaphase I

Answer 1

The correct option is C Chromosome separation in anaphase I

Anaphase I is a step in meiosis I. In this phase two chromosomes of each bivalent separate and move towards the opposite poles due to spindle action. In anaphase II of meiosis II, the sister chromatids are pulled apart. This separation of homologous chromosomes and sister chromatids in anaphase I and II respectively is called disjunction.

Thus the correct answer is option C.