1. Tardigrade
  2. Question
  3. Biology
  4. Pick up the CORRECT statement from the following: a. The spindle formation is anastral in plant cell while amphiastral in an animal cell. b. DNA replicates once in mitosis and twice in meiosis. c. Equational division, as well as reduction division, occurs in both, sexually and asexually reproducing organisms.

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Q. Pick up the CORRECT statement from the following:
a. The spindle formation is anastral in plant cell while amphiastral in an animal cell.
b. DNA replicates once in mitosis and twice in meiosis.
c. Equational division, as well as reduction division, occurs in both, sexually and asexually reproducing organisms.

NTA AbhyasNTA Abhyas 2020Cell Cycle and Cell Division

Solution:

The DNA replication takes place only once during the S phase of mitosis. The equational division also known as mitosis takes place in organisms having both modes of reproduction, asexual as well as sexual, both meiosis or reductional division involves the fusion of gametes and reduction of the chromosome by half, found only in sexual reproduction. In plant cells, the spindle formation is anastral (without asters) and in animal cells spindle has two asters, one at each pole of the spindle.