Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 2. human reproduction1 Mark
MCQ
Primary spermatocyte differs from spermatogonium in
A
Number of chromosomes
✓
Size and volume
C
$DNA$ content
D
Size of chromosomes
✓
Answer
Correct option: B.
Size and volume
b Undifferentiated primordial germ cells undergo mitotic division to produce spermatogonia. Each spermatogonium grows to a large primary spermatocyte by obtaining nutrients from the nursing cells. The $DNA$ content remains same $(2 n)$ in both spermatogonia and primary spermatocyte.
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