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CBSE
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MCQ Questions for CBSE Class 12 with Answers
MCQ Questions for CBSE Class 11 with Answers
MCQ Questions for CBSE Class 10 with Answers
MCQ Questions for CBSE Class 9 with Answers
MCQ Questions for CBSE Class 8 with Answers
MCQ Questions for CBSE Class 7 with Answers
MCQ Questions for CBSE Class 6 with Answers
MCQ Questions for CBSE Class 5 with Answers
MCQ Questions for CBSE Class 4 with Answers
MCQ Questions for CBSE Class 3 with Answers
MCQ Questions for CBSE Class 2 with Answers
MCQ Questions for CBSE Class 1 with Answers
Quiz
CBSE
/
Class 12
/
Biology
/
Sexual Reproduction in Flowering Plants
1.
Double fertilization in angiosperms was discovered by:
Strassburger
J. C. Bose
Maheshwari
Nawaschin
2.
How many meiotic divisions are necessary to produce 100 pollen grains ?
100
50
25
20
3.
Double fertilization means:
Fusion of two eggs
Fusion of egg and pollen nuder of two pollen grains
Fusion of two polar nuclei with one male gamete
Fusion between synergid cells and male gamete
4.
Pollination by bats is called:
omithophily
Entromophily
Cheiropterophily
Hydrophily
5.
Pollination by snails is called:
Malecophily
Zoophily
Anemophily
Hydrophily
6.
Development of fruit without fertilizations is:
Parthenogenesis
Heterostyly
Parthenocarpy
Agamospermy
7.
Who discovered fertilization?
Nawaschin
Strassburger
Leeuwen Hock
Robert Hook
8.
When more than one embryoper embryosac is found. It is called:
Embryogeny
Amphimisis
Agamospormy
Polyembryoni
9.
When pollen tube enter into the nucellus through micropyle is called:
Porogamy
Xenogamy
Mesogamy
Dikogamy
10.
Maturation of male and female sex organs at different times is known as:
Herkogamy
Dichogamy
Polygamy
Apogamy
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