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Model Paper 8 — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETModel Paper 84 Marks
MCQ
At which of the following stages, the chromosomes appear single, thin and thread like?
  • A
    Pachytene
  • B
    Zygotene
  • C
    Leptotene
  • D
    Diplotene
✓

Answer

C. Leptotene
Explanation:
Leptotene also known as leptonema is the first stage of prophase I during which individual chromosomes begin to condense into long strands within the nucleus which are loosely interwoven. However, the two sister chromatids are still so tightly bound that they are indistinguishable from one another. They possess a string of swollen areas called chromomeres.

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