Endosperm is formed during the double fertilization by:
Correct answer: A. Two polar nuclei and one male gamete
- A. Two polar nuclei and one male gamete
- B. One polar nuclei and one male gamete
- C. Ovum and male gamete
- D. Two polar nuclei and two male gametes
Explanation
Double fertilization is the simultaneous occurrence of syngamy and triple fusion. Syngamy involves fusion of one male gamete with egg cell to form zygote. The result of syngamy is zygote (2n) which ultimately develops into embryo. The second male gamete fuses with 2 polar nuclei or secondary nucleus to form triploid primary endosperm nucleus and this is called triple fusion. This primary endosperm nucleus (3n) ultimately develops into a nutritive tissue for developing embryo called endosperm
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reproduction
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.
Practise Reproduction
1,220 free Reproduction MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reproduction questions
Through which cell of the embryo sac, does the pollen tube enter the embryo sac?
What does the filiform apparatus do at the entrance into ovule?
Which one of the following statements is wrong?
Fertilization in humans is practically feasible only if:
Which of the following events is not associated with ovulation in human female?
Freshly released human egg has: