High-pitched voice is a characteristic of which of the following?

  • A
    Middle-aged person
  • B
    Adult male
  • C
    Boys
  • D
    Female

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The age of puberty in females is........

$A$: $LH$ acts on Sertoli cells for release of certain factors required for spermatogenesis.
$R$: Spermiation occurs directly under the influence of $LH$.

Give differences between:
$(a)$ Testis and ovary
$(b)$ Sperm cell and ovum (egg) cell

Identify the correct labeling in the diagram of a human ovary.

The sex of a fetus can be determined by examining the cells of the amniotic fluid for the presence of:

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