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Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation1 Mark
MCQ
Chromosomes were first seen by:
  • A
    Hofmeister
  • B
    Waldeyer
  • C
    Walter S. Sutton
  • D
    Crick and Watson
✓

Answer

  1. Hofmeister

Explanation:

A. Wilhelm Friedrich Benedikt Hofmeister was a German biologist and botanist who observed structures (which later came to be known as chromosomes) in a dividing cell nucleus in 1848.

B. W. Waldeyer coined the term chromosomes for these darkly stained rod-like structures in the year 1888.

C. Water S Sutton and Boveri described chromosomes as physical structures which are messengers of heredity.

D,. Watson and Crick studied the structure of the DNA molecule.

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