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Mitosis is th...

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Mitosis is the type of cell division where the number of chromosomes is maintained and in meiosis a diploid cell becomes a haploid cell.

A

True

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False

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Solution

The correct option is A
True

Mitosis is the type of cell division where the number of chromosomes is maintained and in meiosis, a diploid cell becomes a haploid cell. This is why mitosis is called 'equational division' and meiosis is called 'reduction division'.

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Q. The difference between mitosis and meiosis is that in meiosis
I. Two cell divisions take place.
II. DNA replicates during interphase.
III. Haploid cells are produced from diploid cells.

Q. Match the terms to these definitions.
Centromere, centrosome, chromatin, chromosome, spindle, cell cycle, karyotype, meiosis, mitosis, sister chromatids, interphase, metaphase
.......... A type of cell division where chromosome number in daughter cells remains the same as in parent cell.

Q.
Match the following differences between Mitosis and Meiosis:

Column I	Column 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.

Q. Fill in the blanks
1. Mitosis is a type of cell Division takes place in_____ cell
2. Meiosis is a type of cell Division takes place in_______ cell
3. In mitosis the chromosome number_____
4. In meiosis the chromosome number_____
5. Mitosis occurs at the time of_________reproduction
6. Meiosis occurs at the time of _________ reproduction

Q. Which of the following statements is true?
(i) Mitosis is preceded by one cycle of DNA replication and meiosis is preceded by two cycles of DNA replication.
(ii) In sexually reproducing organisms, meiosis is the only type of cell division observed.
(iii) Meiotic cell division is essential for the production of haploid gametes.

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