In which organism males are haploid?
Correct answer: D. Honey bee
- A. None of these
- B. Mosquito
- C. Butterfly
- D. Honey bee
Explanation
In honey bees, males (drones) are haploid, meaning they carry only one set of chromosomes (16 chromosomes in total) derived from their mother, the diploid queen, who has 32 chromosomes. This haploid nature allows them to produce sperm that is genetically identical to themselves, apart from any mutations. In contrast, mosquitoes and butterflies are diploid organisms where both sexes possess two sets of chromosomes, thus making options B and C incorrect. Option A is also incorrect as honey bees do have haploid males.
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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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