Zaymiey

🔬 Biology  ·  Principles of Inheritance and Variation  ·  NEET

Sex-limited traits appear:

Answer: In both sexes but only fully expressed in one sex.

  • A Only in females, carried on the X chromosome
  • B Only in males, carried on the Y chromosome
  • C In both sexes but only fully expressed in one sex
  • D Only in genes located on the X chromosome

Correct answer: C. In both sexes but only fully expressed in one sex

Explanation: Sex-limited traits are encoded by autosomal genes but expressed only in one sex (e.g., milk yield in cows, beard in men) due to hormonal differences.

Monohybrid Cross: Tt x TtParent 1 (Tt)Parent 2 (Tt)gametes: T, t (from each parent)TtTtTTTtTtttRatio 1 TT : 2 Tt : 1 tt (3 tall : 1 short if T = tall is dominant)

Punnett square for a monohybrid cross between two heterozygous (Tt) parents, showing the 3:1 phenotypic ratio predicted by Mendel's Law of Segregation.

Concept context

Mendel's laws, inheritance patterns, DNA structure, and molecular biology. Core of NEET biology.

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