CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It ensures genetic variation by causing mutations
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It helps to make haploid organisms by reducing the number of gametes
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It keeps the chromosome number of the organism the same by forming diploid gametes
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It ensures the chromosome number of the organism remains constant by making haploid gametes
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Detailed explanation-1: -Gametes are formed through meiosis (reduction division), in which a germ cell undergoes two fissions, resulting in the production of four gametes. During fertilization, male and female gametes fuse, producing a diploid (i.e., containing paired chromosomes) zygote.
Detailed explanation-2: -Meiosis is a process that starts with a given number of chromosomes in the nucleus of a cell, and ends with gamete cells that each contain half the number of chromosomes that were in the original cell. Most human cells, for example, have 46 chromosomes, whereas sperm and egg cells have only 23 chromosomes.
Detailed explanation-3: -Haploid gametes are produced during meiosis, which is a type of cell division that reduces the number of chromosomes in a parent diploid cell by half. Some organisms, like algae, have haploid portions of their life cycle.
Detailed explanation-4: -Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.