Biology, asked by humerasadaf131, 8 months ago

in drone which division takes place??​

Answers

Answered by dhamija29
7

An example of cell division in haploid cells is the male honeybee (drone bee) which develops from a haploid unfertilized egg.

Meiosis is a special kind of cell division in which the chromosome number is reduced in half. This is how the chromosome number in a life cycle changes from diploid (2n) to haploid (n). In humans, the only cells that undergo meiosis are egg mother cells (oöcytes) in the ovaries and sperm mother cells (spermatocytes) in the testes. Egg formation and sperm formation are referred to as oögenesis and spermatogenesis. In flowering plants, meiosis occurs in megaspore mother cells (megasporocytes) within the ovules of ovaries, and in microspore mother cells (microsporocytes) within the anthers of stamens. In the first division (blue cells in above illustration), the homologous chromosome doublets separate from each other so they are no longer in pairs. In the second and final division the chromatids of each doubled chromosome separate from each other forming the haploid gametes. The following illustration shows detailed stages of the first and second divisions of meiosis.

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