A diploid cell has two sets of chromosomes, what is the diploid number for a...
BIOLOGY
SAT 2021
A diploid cell has two sets of chromosomes, what is the diploid number for a human somatic cell if one human gamete has 23 chromosomes?
- A. 69
- B. 36
- C. 44
- D. 46
Correct Answer: D. 46
Explanation
A gamete will have n=23 chromosomes while a somatic cell is going to have a diploid number of cells, or 2n=46. This is the case because somatic cells are going to receive a copy of chromosomes from each parent, so 23 from the mother and 23 form the father to give 46 total chromosomes. If you are ever given the haploid number and asked for the diploid number, then you can simply double the haploid number.
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