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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
Sex is determined in human beings:
  • A
    By ovum.
  • ✓
    At the time of fertilization.
  • C
    $40$ days after fertilization.
  • D
    Seventh to eight week when genitals differentiate in foetus.
✓

Answer

Correct option: B.
At the time of fertilization.

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