Zaymiey

🔬 Biology  ·  Principles of Inheritance and Variation  ·  NEET

The phenomenon of linkage between genes was first discovered by:

Answer: T. H. Morgan.

  • A T. H. Morgan
  • B Gregor Mendel
  • C Walter Sutton
  • D Hugo de Vries

Correct answer: A. T. H. Morgan

Explanation: T. H. Morgan, working on Drosophila, found that genes located on the same chromosome tend to be inherited together, describing linkage.

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.

Read the full Principles of Inheritance and Variation notes →