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Heredity and Evolution — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHeredity and Evolution1 Mark
MCQ
A trait in an organism is influenced by :
  • A
    Paternal $\ce{DNA} $ only.
  • B
    Maternal $\ce{DNA}$ only.
  • ✓
    Both maternal and paternal $\ce{DNA}.$
  • D
    Neither by paternal nor by maternal $\ce{DNA}.$
✓

Answer

Correct option: C.
Both maternal and paternal $\ce{DNA}.$
A trait in an organism is influenced by both maternal and paternal $\ce{DNA}$. This is because in zygote, one half of the chromosomes is contributed by the mother, and the other half by the father.

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