Chromosomes number is halved in
(a) meiosis I
(b) Meiosis II
(c) mitosis
(d) amitosis

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Solution

(b) meiosis I

Meiosis I is also known as heterotypic division, in which the number of diploid chromosomes of the parent cell is reduced to half in daughter cells.

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Q. Which division takes most time
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Q. In a comparative study of similar events in Mitosis and Meiosis; the number of Chromosomes is (i)______ and represents two different sets from each (ii)______.

Q. Assertion :Meiosis-I is called reductional division in which crossing over occur between homologous chromosomes and as end product each cell receives one set of chromosomes. Reason: Meiosis II is same as Mitosis.

Match the following differences between Mitosis and Meiosis:

$\begin{matrix} Table I & Table II i) Mitosis & a. Two Diploid daughter cells are formed. ii) Meiosis & b. Four Haploid daughter cells are formed. c. The number of chromosomes remains the same. d. Bivalents are formed and crossing over is seen. e. Division process occurs twice. f. Division process occurs only once. \end{matrix}$

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Chromosomes number is halved in (a) meiosis I (b) Meiosis II (c) mitosis (d) amitosis

(b) meiosis IMeiosis I is also known as heterotypic division, in which the number of diploid chromosomes of the parent cell is reduced to half in daughter cells.

Chromosomes number is halved in
(a) meiosis I
(b) Meiosis II
(c) mitosis
(d) amitosis

(b) meiosis I

Meiosis I is also known as heterotypic division, in which the number of diploid chromosomes of the parent cell is reduced to half in daughter cells.