Zaymiey

🔬 Biology  ·  Principles of Inheritance and Variation  ·  NEET

Point mutation that changes one amino acid to another is called:

Answer: Missense mutation.

  • A Silent mutation
  • B Frameshift mutation
  • C Missense mutation
  • D Nonsense mutation

Correct answer: C. Missense mutation

Explanation: Missense mutation: one nucleotide change causes one different amino acid to be incorporated. May affect protein function (e.g., sickle cell anaemia).

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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