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🔬 Biology  ·  Principles of Inheritance and Variation  ·  NEET

In incomplete dominance, F<sub>1</sub> of RR x WW red and white snapdragons is:

Answer: Pink (intermediate phenotype).

  • A All red, like the dominant red parent
  • B All white, like the recessive white parent
  • C Pink (intermediate phenotype)
  • D Half red, half white in a mosaic pattern

Correct answer: C. Pink (intermediate phenotype)

Explanation: Incomplete dominance: neither allele is completely dominant. RW heterozygotes show an intermediate phenotype (pink in snapdragons).

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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