The number of chromosomes in gametes are?
Correct answer: A. n
- A. n
- B. 2n
- C. 3n
- D. 4n
Explanation
The number of chromosomes in gametes is haploid, meaning they have half the number of chromosomes as the somatic cells (diploid cells) of the organism. In humans, for example, somatic cells are diploid and have 46 chromosomes (23 pairs), while gametes are haploid and have 23 chromosomes.
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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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