CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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has 2 sets of chromosomes
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has more than two sets of chromosomes
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has half the number of original chromosomes
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cannot undergo meiosis
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Detailed explanation-1: -Each daughter cell is haploid and has only one set of chromosomes, or half the total number of chromosomes of the original cell. Meiosis II is a mitotic division of each of the haploid cells produced in meiosis I. During prophase II, the chromosomes condense, and a new set of spindle fibers forms.
Detailed explanation-2: -Haploid cells contain half the number of chromosomes as diploid cells. A human diploid cell contains a total of 46 chromosomes (2n = 46), so a haploid cell will contain 23 chromosomes (n = 23).
Detailed explanation-3: -Meiosis functions to reduce the number of chromosomes to one half. Each daughter cell that is produced will have one half as many chromosomes as the parent cell. Meiosis is part of the sexual process because gametes (sperm, eggs) have one half the chromosomes as diploid (2N) individuals.
Detailed explanation-4: -Every cell in the human body contains 23 pairs of such chromosomes; our diploid number is therefore 46, our ‘haploid’ number 23.
Detailed explanation-5: -The term haploidy refers to the state of having half of the set of chromosomes. Haploid cells (e.g. gametes) are given a symbol n to indicate that they have only half of the chromosomal set of a somatic cell, i.e. any of the cells in the body of a multicellular organism but excluding the germ cells and the sex cells.