The difference between primary and secondary spermatocyte lies in _.
Correct answer: B. Number of chromosomes
- A. Presence /absence of a tail
- B. Number of chromosomes
- C. Being hormone producing/non-hormone producing
- D. Primary gamete/secondary gamete in males
Explanation
This is the key difference between primary and secondary spermatocytes. A secondary spermatocyte is a diploid cell with a full set of chromosomes (46 in humans). During meiosis-I, a secondary spermatocyte undergoes reduction division to produce two primary spermatocytes, each with half the number of chromosomes (23 in humans). So, option B is correct.
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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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