Vernalisation serves the following purpose(s):
Correct answer: B. Ensures reproduction at suitable times
- A. Discourages cross-pollination
- B. Ensures reproduction at suitable times
- C. Ensures that all species flower at the same time
- D. Both (b) and (c)
Explanation
It ensures flowering occurs during favorable seasons.Vernalisation ensures that flowering and seed production happen only when environmental conditions are favorable, usually in spring. In some plants, flowering requires a prolonged exposure to cold during winter before they can bloom. This helps prevent the plant from flowering too early (in autumn or early winter) when survival of flowers and seeds would be poor.
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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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