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Heredity and Evolution — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceHeredity and Evolution1 Mark
MCQ
Which statement about the genotypes of organisms is correct?
  • A
    Dominant alleles are only found in homozygotes.
  • B
    One recessive allele always causes a recessive phenotype.
  • ✓
    Recessive phenotypes must be homozygous.
  • D
    The dominant phenotype must be heterozygous.
✓

Answer

Correct option: C.
Recessive phenotypes must be homozygous.

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