Zaymiey

🔬 Biology  ·  Principles of Inheritance and Variation  ·  NEET

The central dogma of molecular biology is:

Answer: DNA → RNA → Protein.

  • A Protein → RNA → DNA
  • B DNA → RNA → Protein
  • C RNA → DNA → Protein
  • D Protein → DNA → RNA

Correct answer: B. DNA → RNA → Protein

Explanation: Central dogma: DNA is transcribed to mRNA, which is translated to protein. Information flows from nucleic acid to protein.

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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