CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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20
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40
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80
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160
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Detailed explanation-1: -The half number of chromosomes from each parental cell is successfully fused in order to produce an organism that has normal chromosomes. Therefore, there are 80 chromosomes that are present in the body cells of a male shark if it has 40 chromosomes in each of its sex cells.
Detailed explanation-2: -A male shark has 40 chromosomes in each of its sex cells. How many chromosomes would be present in a normal body cell of a shark? 19.
Detailed explanation-3: -Each daughter cell will have 30 chromosomes.
Detailed explanation-4: -A haploid cell of all organisms contains an unpaired set of chromosomes and half the number of chromosomes as a diploid cell, so the answer is 20 (half of 40).
Detailed explanation-5: -The correct answer: In a certain organism 2n=40. Sperm cells will have n=20 chromosomes. The organism has 40 chromosomes in the diploid cells in their body. Since the male gamete sperm is produced with the help of meiosis, therefore the chromosome number in the gamete is reduced to half in the gametes.