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Biology · 2026 · 3 marks
CBSE 2026 · Region 5 · Set 2 · Q22
(a) Draw a sectional view of seminiferous tubule of a human. Label the following cells in the seminiferous tubule: (i) Cells that divide by mitosis…
(a)
Draw a sectional view of seminiferous tubule of a human. Label the following cells in the seminiferous tubule :
(i)
Cells that divide by mitosis to increase their number
(ii)
Cells that undergo meiosis I
(iii)
Cells that undergo meiosis II
(iv)
Cells that help in the process of spermiogenesis
(b)
Mention the role of Leydig cells.
Marking-scheme solution
(a)
(b)
Leydig cells secrete testosterone/ androgens (which is necessary for spermatogenesis)
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CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.