OBJECTIVES OF REPRODUCTION IN CELL

Multiple Choice Questions (MCQs)

  1. Phragmoplast is formed from:

(a) Ribosome (b) ER                 (c) Golgi body (d) None

  1. Chromosomes start condensing in:

(a) Leptotene (b) Zygotene     (c) Pachytene (d) Diplotene

  1. The chromatids of non-sister chromosomes start repelling each other in:

(a) Leptotene (b) Zygotene     (c) Pachytene (d) Diplotene

  1. Crossing over occurs in:

(a) Leptotene (b) Zygotene     (c) Pachytene (d) Diplotene

  1. The pairing of chromosomes take place in: (a) Leptotene (b) Zygotene (c) Pachytene (d) Diplotene
  2. DNA replication take place in:

(a) GI phase     (b) S phase      (c) M phase     (c) G2 phase

  1. Microtubules are formed in:

(a) Gi phase      (b) S phase      (c) M phase     (c) G2 phase

  1. Partitioning of daughter chromosome takes place in:

(a) Gi phase      (b) S phase      (c) M phase     (c) G2 phase

Answers:

1. (c) 2. (a) 3. (d) 4. (c) 5. (b) 6. (b) 7. (b) 8. (c) 9. (c)

Fill in blanks

I. The type of cell division in which number of chromosomes remains constant in the daughter cells as in the parent cells is called______.


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  1. ________ can take place in haploid and in diploid cells in all
    parts of the body.
  2. The specialized microtubtde structure including aster and spindle

is called_________ apparatus.

  1. The centromere has special area called __
  2. Each paired (but not fused) complex structure is called as

bivalent or_______

  1. The exchange of segment of the non-sister chromatids of

homologous chromosomes is called ____

  1. The period from the time a cell is produced until it completes

mitosis is called cell ______
Ans:

I. mitosis       2. Mitosis      3. mitotic       4. Kinetochore

5. tetrad        6. crossing over                   7. cycle

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