Multiple choice

Meiosis occurs at which of the following transformation?

  1. Primary spermatocyte to intermediate spermatocyte

  2. Primary spermatocyte to secondary spermatocyte

  3. Secondary spermatocyte to round spermatid

  4. Round spermatid to elongated spermatid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Meiosis I occurs when primary spermatocytes (2n, 4C) divide to form secondary spermatocytes (n, 2C). This is the reduction division that halves the chromosome number. Meiosis II then converts secondary spermatocytes to spermatids.

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