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1
Endosperm is generally ___________________
Haploid
Diploid
Triploid
Polyploid
2
What is fertilization?
The fusion of female and male sex cells.
The fusion of two male sex cells.
The fusion of two female sex cells.
None of the above.
3
The process of fusion of the male and the female gametes is called ___________________
Birth control
Pollination
Fertilisation
Adolescence
4
In a rose flower, we find
Many petals which are coloured
Stamen are joined to petals
Pistil is not present
All of the above are correct
5
The anther contains __________________
Sepals
Ovules
Carpel
Pollen grains
6
Double fertilisation is fusion of _______________________
Two eggs
Two eggs and polar nuclei
One male gamete with egg and other with synergids
One male gamete with egg and other with polar nuclei
7
In the sexual reproduction, there must be a union of _________________
One male and one female reproductive cell
Two male reproductive cells
Two female reproductive cells
Two male cells with two female reproductive cells
8
Which of the following are the Male reproductive parts of the plant ?
Ovary and ovule
Style and stigma
Anther and filament
Style and ovule
9
Advantage of sexual reproduction over asexual reproduction is
Sexual reproduction is safer & faster
It causes variations & brings evolution
Both of the above
None of the above
10
How long is the gestation period in humans?
9 weeks
9 months
7 months
7 weeks
11
A flower is said to be complete when ___________________________
All the four whorls are absent
Any of the whorls is present
All the four whorls are present
Any two whorls are absent
12
Sexual reproduction lead to __________________
Genetic recombination
Polypoidy
Aneuploidy
Euploidy
13
Which of these term is not associated with flower?
Pistil
Midrib
14
Which of the following are correct ?
(a) The transfer of pollen grains from the anther to the stigma is known as pollination. When the anthers grow and mature; they burst open and release pollen grains (male gametes).
(b) The pollen grains are carried to the stigma (female part) of another flower (of the same type) by insects, birds, wind or water.
(c) Insects and birds visit flowers to collect nectar and they are called as pollinators.
Only (a) and (b) is correct .
Only (b) and (c) is correct .
Only (a) and (c) is correct .
All of these .
15
(a) Seeds and fruits that are dispersed by wind are small and light.
(b) Some seeds have wings which help them in their dispersal. For example, the seeds of Aloe Vera and apple.
(c) The seeds of Madar have tufts of hair that can be carried away easily by the wind.