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STD 11 - 10. Cell cycle and cell division — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 10. Cell cycle and cell division1 Mark
MCQ
Chiasmata are formed due to
  • ✓
    Crossing over of same part between homologous chromosomes
  • B
    Crossing over of same part between non-homologous chromosomes
  • C
    Duplication of homologous and non-homologous chromosomes
  • D
    Loss of some part of chromosomes
✓

Answer

Correct option: A.
Crossing over of same part between homologous chromosomes
a
During diplotene substage of meiotic division, the force of attraction between homologous chromosomes reduced and later on they move apart.

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