262747
Which one of the following is not a correct explanation of cross-pollination?
1 The pollen grains of male flowers are transferred to the stigma of the female flowers.
2 The pollen grains are transferred from one flower to another flower, of another plant of the same species.
3 The pollen grains are transferred from one flower to another flower situated on the same plant.
4 The pollen grains of one flower are transferred to the stigma of the same flower
Explanation:
Transfer of pollen grains from the anther to the stigma of the same flower is known as selfpollination. Cross pollination is the transfer of pollen grains from the anther to stigma of another flower.
J and K CET-2015 / VMMC-2010
Sexual Reproduction in Flowering Plants
262749
In nature, allogamy is met within
1 unisexual flowers only
2 neuter flowers only
3 underground flowers only
4 none of the above
Explanation:
In nature, allogamy is met within unisexual flowers only because in unisexual flowers, either male or female reproductive organ is present but not both. Allogamy is a type of pollination in which the pollen grains transfer from the anther of flower to the stigma of the flower of another plant Neuter flowers have undeveloped or non-functional reproductive organs.
AMU-1997
Sexual Reproduction in Flowering Plants
262751
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains, is characterstic of
1 chiropterophily
2 entomophily
3 anemophily
4 ornithophily
Explanation:
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains is characteristic of anemophily. Anemophily is the pollination by wind. Chiropterophily is the pollination by bats. Entemophily is the pollination by insects. Ornithophily is the pollination by birds.
MHT CET-06.10.2020 Shift-I
Sexual Reproduction in Flowering Plants
262752
Gloriosa superb is a good example of one of the following:
1 heterostyly
2 cleistogamy
3 self sterility
4 herkogamy
Explanation:
Glorisa superb is a good example of Herkogamy. Herkogamy is a phenomenon of having anther and stigma are in different position in the same plant. It is a mechanism to promote cross-pollination in flower. In glorisa, flowers are bisexual but the pollen grains are not able to reach the stigma. Heterstyly is a phenomenon of having different-heights of styles and stamens. Cleistogamy is a type of self-pollination that occurs within a closed flower. When a plant is unable to perform self-fertilisation it is called self-sterility. ExPotato, Tobacco etc.
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Sexual Reproduction in Flowering Plants
262747
Which one of the following is not a correct explanation of cross-pollination?
1 The pollen grains of male flowers are transferred to the stigma of the female flowers.
2 The pollen grains are transferred from one flower to another flower, of another plant of the same species.
3 The pollen grains are transferred from one flower to another flower situated on the same plant.
4 The pollen grains of one flower are transferred to the stigma of the same flower
Explanation:
Transfer of pollen grains from the anther to the stigma of the same flower is known as selfpollination. Cross pollination is the transfer of pollen grains from the anther to stigma of another flower.
J and K CET-2015 / VMMC-2010
Sexual Reproduction in Flowering Plants
262749
In nature, allogamy is met within
1 unisexual flowers only
2 neuter flowers only
3 underground flowers only
4 none of the above
Explanation:
In nature, allogamy is met within unisexual flowers only because in unisexual flowers, either male or female reproductive organ is present but not both. Allogamy is a type of pollination in which the pollen grains transfer from the anther of flower to the stigma of the flower of another plant Neuter flowers have undeveloped or non-functional reproductive organs.
AMU-1997
Sexual Reproduction in Flowering Plants
262751
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains, is characterstic of
1 chiropterophily
2 entomophily
3 anemophily
4 ornithophily
Explanation:
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains is characteristic of anemophily. Anemophily is the pollination by wind. Chiropterophily is the pollination by bats. Entemophily is the pollination by insects. Ornithophily is the pollination by birds.
MHT CET-06.10.2020 Shift-I
Sexual Reproduction in Flowering Plants
262752
Gloriosa superb is a good example of one of the following:
1 heterostyly
2 cleistogamy
3 self sterility
4 herkogamy
Explanation:
Glorisa superb is a good example of Herkogamy. Herkogamy is a phenomenon of having anther and stigma are in different position in the same plant. It is a mechanism to promote cross-pollination in flower. In glorisa, flowers are bisexual but the pollen grains are not able to reach the stigma. Heterstyly is a phenomenon of having different-heights of styles and stamens. Cleistogamy is a type of self-pollination that occurs within a closed flower. When a plant is unable to perform self-fertilisation it is called self-sterility. ExPotato, Tobacco etc.
262747
Which one of the following is not a correct explanation of cross-pollination?
1 The pollen grains of male flowers are transferred to the stigma of the female flowers.
2 The pollen grains are transferred from one flower to another flower, of another plant of the same species.
3 The pollen grains are transferred from one flower to another flower situated on the same plant.
4 The pollen grains of one flower are transferred to the stigma of the same flower
Explanation:
Transfer of pollen grains from the anther to the stigma of the same flower is known as selfpollination. Cross pollination is the transfer of pollen grains from the anther to stigma of another flower.
J and K CET-2015 / VMMC-2010
Sexual Reproduction in Flowering Plants
262749
In nature, allogamy is met within
1 unisexual flowers only
2 neuter flowers only
3 underground flowers only
4 none of the above
Explanation:
In nature, allogamy is met within unisexual flowers only because in unisexual flowers, either male or female reproductive organ is present but not both. Allogamy is a type of pollination in which the pollen grains transfer from the anther of flower to the stigma of the flower of another plant Neuter flowers have undeveloped or non-functional reproductive organs.
AMU-1997
Sexual Reproduction in Flowering Plants
262751
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains, is characterstic of
1 chiropterophily
2 entomophily
3 anemophily
4 ornithophily
Explanation:
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains is characteristic of anemophily. Anemophily is the pollination by wind. Chiropterophily is the pollination by bats. Entemophily is the pollination by insects. Ornithophily is the pollination by birds.
MHT CET-06.10.2020 Shift-I
Sexual Reproduction in Flowering Plants
262752
Gloriosa superb is a good example of one of the following:
1 heterostyly
2 cleistogamy
3 self sterility
4 herkogamy
Explanation:
Glorisa superb is a good example of Herkogamy. Herkogamy is a phenomenon of having anther and stigma are in different position in the same plant. It is a mechanism to promote cross-pollination in flower. In glorisa, flowers are bisexual but the pollen grains are not able to reach the stigma. Heterstyly is a phenomenon of having different-heights of styles and stamens. Cleistogamy is a type of self-pollination that occurs within a closed flower. When a plant is unable to perform self-fertilisation it is called self-sterility. ExPotato, Tobacco etc.
262747
Which one of the following is not a correct explanation of cross-pollination?
1 The pollen grains of male flowers are transferred to the stigma of the female flowers.
2 The pollen grains are transferred from one flower to another flower, of another plant of the same species.
3 The pollen grains are transferred from one flower to another flower situated on the same plant.
4 The pollen grains of one flower are transferred to the stigma of the same flower
Explanation:
Transfer of pollen grains from the anther to the stigma of the same flower is known as selfpollination. Cross pollination is the transfer of pollen grains from the anther to stigma of another flower.
J and K CET-2015 / VMMC-2010
Sexual Reproduction in Flowering Plants
262749
In nature, allogamy is met within
1 unisexual flowers only
2 neuter flowers only
3 underground flowers only
4 none of the above
Explanation:
In nature, allogamy is met within unisexual flowers only because in unisexual flowers, either male or female reproductive organ is present but not both. Allogamy is a type of pollination in which the pollen grains transfer from the anther of flower to the stigma of the flower of another plant Neuter flowers have undeveloped or non-functional reproductive organs.
AMU-1997
Sexual Reproduction in Flowering Plants
262751
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains, is characterstic of
1 chiropterophily
2 entomophily
3 anemophily
4 ornithophily
Explanation:
Plants bearing small, inconspicuous flowers lacking fragrance, nectar and producing large number of smooth walled pollen grains is characteristic of anemophily. Anemophily is the pollination by wind. Chiropterophily is the pollination by bats. Entemophily is the pollination by insects. Ornithophily is the pollination by birds.
MHT CET-06.10.2020 Shift-I
Sexual Reproduction in Flowering Plants
262752
Gloriosa superb is a good example of one of the following:
1 heterostyly
2 cleistogamy
3 self sterility
4 herkogamy
Explanation:
Glorisa superb is a good example of Herkogamy. Herkogamy is a phenomenon of having anther and stigma are in different position in the same plant. It is a mechanism to promote cross-pollination in flower. In glorisa, flowers are bisexual but the pollen grains are not able to reach the stigma. Heterstyly is a phenomenon of having different-heights of styles and stamens. Cleistogamy is a type of self-pollination that occurs within a closed flower. When a plant is unable to perform self-fertilisation it is called self-sterility. ExPotato, Tobacco etc.