Why is Meiosis II referred to as an equational division?

Answer and explanation

Correct answer: A. Because chromosome number remains unchanged from start of Meiosis II to completion

  1. Step 1: Meiosis I is termed a reductional division because the diploid chromosome number is reduced to haploid () through the segregation of homologous chromosomes.
  2. Step 2: Meiosis II begins with haploid secondary cells () and separates sister chromatids at anaphase II.
  3. Step 3: The resulting four gametes each contain the exact same haploid chromosome count (); hence it is called an equational division.
Answer
Because the chromosome number remains unchanged from the beginning of Meiosis II () to its completion ().
Why not the others: Crossing over occurs in Meiosis I (Pachytene), not Meiosis II; Producing diploid cells contradicts the generation of haploid gametes; Time durations of karyokinesis and cytokinesis are unequal.

Practise more Cell Cycle and Cell Division.

Free questions with an explanation for every one, and full timed NEET UG mock tests.