In sexual reproduction, plants have diplohaplontic life cycle with alternating _.
Correct answer: D. Diploid sporophyte and haploid gametophyte generations
- A. Haploid sporophyte and diploid gametophyte generations
- B. Diploid sporophyte and diploid gametophyte generations
- C. Haploid sporophyte and haploid gametophyte generations
- D. Diploid sporophyte and haploid gametophyte generations
Explanation
Alternation of generations means that plants alternate between two different life stages, or generations, in their life cycle; a haploid stage called gametophyte and a diploid stage called sporophyte. The terms haploid and diploid refer to the number of chromosomes contained in the cells.
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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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