Question

How many chromosomes are present in telophase ii?

Answer 1

Hint: In a diploid cell there are two sets of chromosomes that undergo meiosis, one side contributed by the male parent and the other by the female parent. There are always similar chromosomes having the same size, form and structure and are called homologous chromosomes.

Complete answer:
-Meiosis consists of two divisions that take place in rapid succession, with chromosomes replicating only once. Thus, a parent cell produces four daughter cells each having half the number of chromosomes and half the nuclear DNA amount present in the parent cell. Meiosis-I and meiosis-II or the first and second meiotic divisions are the two divisions of meiosis.
-In meiosis I the two homologous chromosomes of each pair separate from each other and go to separate daughter cells. This reduces the number of chromosomes from deployed to haploid condition. Meiosis I is therefore called heterotypic division. It has four phases that are prophase-I, metaphase-I, anaphase-I and telophase-I.
-In meiosis II the two chromatids of each chromosome separate from each other and go to separate daughter cells. So the number of the chromosomes in a cell after meiosis-II remains the same as after the end of meiosis I. Meiosis II is therefore known as homotypic division. The four stages of this division are prophase-II, metaphase-II, anaphase II and telophase-II.
-Humans have 46 chromosomes and there are 23 chromosomes in the telophase-II stage.

Note: Telophase-II is the stage at which the group of chromosomes at each pole of the spindle gets enclosed by a nuclear envelope. Nucleoli are laid down. Astral rays and spindles are lost. It is usually followed by the cytokinesis of a cell.