Question
Download Solution PDFHow many pairs of sex chromosomes are present in humans?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct option is 1 pair.
Key Points
- A total of 46 chromosomes make up a human, including one pair of XX or XY chromosomes and 22 pairs of numbered chromosomes autosomes.
- Sex chromosomes, the 23rd pair, are different in males and females.
- In contrast to males, who have one X and one Y chromosome, females have two copies of the X chromosome.
- By size, the 22 autosomes are numbered. The sex chromosomes are X and Y, the other two chromosomes.
Additional Information
- During these cell divisions, DNA can be precisely copied thanks to chromosomes.
- Our cells' nuclei contain chromosomes, which allow DNA to be precisely copied during cell division.
- This makes sure that everything inside of us operates effectively and smoothly.
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