Sexual Reproduction In Flowering Plants Ques 121
121. Double fertilization is fusion of
[1991]
(a) two eggs
(b) two eggs and polar nuclei with pollen nuclei
(c) one male gamete with egg and other with synergid
(d) one male gamete with egg and other with secondary nucleus
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Answer:
Correct Answer: 121.( d )
Solution:
- (d) In angiosperms one male gamete fuses with the egg to form diploid zygote. The process is called syngamy. The other male gamete fuses with the two polar nuclei to form triploid primary endosperm nucleus. The process is called triple fusion. These two acts together known as double fertilization. The process was It demonstrated by Nawaschin & Guignard in Fritillaria & Lilium.
BETA
