LABORATORY REVIEW
MITOSIS AND MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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5
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10
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20
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25
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Detailed explanation-1: -Correct answer is option b) 20. Explanation: If the egg cell has 10 chromosomes (haploid ‘n’), then the number of chromosomes present in diploid cell (2n) is 20.
Detailed explanation-2: -The diploid chromosome number is 10. So, the haploid chromosome number will be= 10/2= 5. The number of possible chromosome pairs is given by= 2n, where n is the haploid chromosome number. So, the number of chromosome pairs for having a diploid chromosome number of 10 will be= 25.
Detailed explanation-3: -Corn has diploid number of chromosomes. It is thus given as 2n = 20.
Detailed explanation-4: -Haploidy (n) refers to the state of having the half of the set of chromosomes as in a germ cell or a gamete. Triploidy (3n) is a rare chromosomal abnormality when there is an extra pair of the chromosome in their cells. Example: endosperm in plants. Therefore, 2n = 20 chromosomes. n = 10 chromosomes.
Detailed explanation-5: -Explanation: Haploid means half, and diploid means double of the half, and so its diploid number will be 20⋅2=40 if its haploid number is 20 .