Male gametophyte in angiosperms produces:
Correct answer: C. Two sperms and a vegetative cell
- A. Single sperm and two vegetative cells
- B. Three sperms
- C. Two sperms and a vegetative cell
- D. Single sperm and a vegetative cell.
Explanation
The protoplast of the male gametophyte divides mitotically to produce two unequal cells - a small generative cell and a large vegetative cell. The generative cell divides later into two nonmotile male gametes (or sperms ). Thus, the male gametophyte in angiosperms produces two sperms and a vegetative cell. The vegetative cell, later on, grows to produce a pollen tube. FTB page# 182-184 STB page# 172-174
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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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