A human cell from the ovary has 22 chromosomes and an X chromosome. It is which of the following?
Correct answer: A. Egg
- A. Egg
- B. Sperm
- C. Somatic cell
- D. Gamete
Explanation
In humans, each cell nucleus contains 23 pairs of chromosomes, a total of 46 chromosomes. The first 22 pairs are called autosomes. The X chromosome is always present as the 23rd chromosome in the ovum or egg, while either an X or a Y chromosome can be present in individual sperm. Since we already know it is present in the ovary of a female so the correct Option is A.
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About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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