State how meiosis maintains the chromosome number in a species. [2 MARKS]

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Solution

Reason: 2 Marks

The gametes are formed by meiosis during which the number of chromosomes are reduced to half, i.e. gametes contain haploid number of chromosomes. The male and female gametes fuse to form a zygote. In this way, meiosis maintains a chromosome number in species.

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Q. How is chromosomes maintained by meiosis in sexual reproduction?

Question 35
Comment on the statement-meiosis enables the conservation of specific chromosome number of each species even through the process per se results in reduction of chromosome number.

Q. Choose the correct statement regarding chromosomes.

Statement 1: The number of chromosomes in parents and offsprings of a particular species remains constant.

Statement 2: Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half.

Q. Species-specific chromosome number is maintained generation after generation by

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

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State how meiosis maintains the chromosome number in a species. [2 MARKS]

Reason: 2 Marks The gametes are formed by meiosis during which the number of chromosomes are reduced to half, i.e. gametes contain haploid number of chromosomes. The male and female gametes fuse to form a zygote. In this way, meiosis maintains a chromosome number in species.

Reason: 2 Marks

The gametes are formed by meiosis during which the number of chromosomes are reduced to half, i.e. gametes contain haploid number of chromosomes. The male and female gametes fuse to form a zygote. In this way, meiosis maintains a chromosome number in species.