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Bead-like thickened portions of leptoten...

Bead-like thickened portions of leptotene chromosomes are

A

puffs

B

chromomeres

C

centromeres

D

centrosome

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The correct Answer is:
B
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Choose the correctly matched pairs and correct option (a) Leptotene - chromosomes become invisible (b) Zygotene - pairing of homologous chromosomes (c) Pachytene - Dissolution of synaptonemal complex takes place (d) Diplotene - Bivalent chromosomes appear as tetrads (e) Diakinesis - Terminalisation of chiasmata takes place

TRUEMAN BIOLOGY-CELL CYCLE AND CELL DIVISION-MULTIPLE CHOICE QUESTIONS
  1. Anastral mitosis is found in

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  2. Leptotene chromosomes have

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  3. Bead-like thickened portions of leptotene chromosomes are

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  4. If a somatic cell undergoes two successive nuclear divisions without c...

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  5. Name the stage of cell cycle at which one of the following events occu...

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  6. What is the average cell cycle span for a mammalian cell?

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  7. When energy is stored and cell undergoes differentiation, the stage is...

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  8. Which one of the following precedes re-formation of the nuclear envelo...

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  9. Postmitotic gap phase and synthetic phase refer to

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  10. The two chromatids of a metaphase chromosome represent

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  11. Which one of the following pair is correctly matched?

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  12. A cell has 46 chromosomes at each pole in mitotic telophase. In this d...

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  13. If the DNA content of a cell is 2C after M phase, what will be the DNA...

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  14. Reductional division involves

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  15. Match List-I (Distinguishing features based on chromosomal appearance)...

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  16. Match list-I with list-II and select the correct answer using the code...

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  17. Which one of the following combinations of chromosome number (n) and D...

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  18. A characteristic feature of meiosis is

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  19. The undifferentiated cell of an animal has 64 chromatids in metaphase....

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  20. If the number of dyads at each pole during Anaphase-I is 25 the gamete...

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