62571
In some plants, anthers and stigma grow and mature at same time. This phenomenon is called:
1 Homogamy
2 syngamy
3 allogamy
4 fusion
Explanation:
A In homogamy, the anther and stigma of bisexual flowers of some plants mature at the same time. They are brought close to each other to ensure self-pollination. Syngamy means fusion of gametes syngamy is the phenomenon in which male gamete fuses with egg in the embryosac of flowering plants. Allogamy refers to the movement of the pollen grains from the anther of one plant to the stigma of a flower of another member of the same species. It is a type of cross fertilization.
AFMC-2005
Morphology of Plants
62572
The thorn of water chestnut (Trapa bispinosa) is the modification of :
1 Petals
2 Sepals
3 Stamens
4 Style
Explanation:
B Water chestnut (Trapa bispinosis) is an annual plant with a submerged stem 12-15 feet long that has fine roots that anchor it to the soil. The fruit of water chestnut is a drupe which develops from a ripened ovary. All parts of the flower (styles, stamens, and petals) are shed off while the fruit develops and just the sepals remains which get modified to form thorns (spines).
Rajasthan PMT-1996
Morphology of Plants
62573
The nature of a fruit developing from a flower depends on the type of:
1 gynoecium
2 pollination
3 fertilization
4 androecium
Explanation:
A The nature of a fruit developing from a flower depends on the type of gynoecium. It is the female reproductive portion as well as the innermost whorl in a flower. Carpel is the main component of gynoecium that consists of ovary, style and stigma.
Karnataka CET-2002
Morphology of Plants
62574
The expression gynoecium is apocarpous implies that the
1 gynoecium comprises only one pistil which is fused with the stamen
2 gynoecium comprises more than one carpel which are free from each other
3 gynoecium comprises only one carpel which is free
4 gynoecium comprises more than one carpel which are fused
Explanation:
B The expression gynoecium is apocarpous implies that the gynoecium comprises more than one carpel which are free from each other.
DUMET-2010
Morphology of Plants
62575
The spice saffron is obtained from which one of the following?
1 Corolla
2 Stamen
3 Stigma
4 Tender tip of leaf
Explanation:
C Crocus sativus (saffron) belongs to the family Iridaceae. It is a rhizomatous herb. The dried stigma and top of style make the saffron of commerce. The product is obtained from the stigmas of the flowers, 4000 of which are required to produce \(25 \mathrm{gm}\) of saffron.
62571
In some plants, anthers and stigma grow and mature at same time. This phenomenon is called:
1 Homogamy
2 syngamy
3 allogamy
4 fusion
Explanation:
A In homogamy, the anther and stigma of bisexual flowers of some plants mature at the same time. They are brought close to each other to ensure self-pollination. Syngamy means fusion of gametes syngamy is the phenomenon in which male gamete fuses with egg in the embryosac of flowering plants. Allogamy refers to the movement of the pollen grains from the anther of one plant to the stigma of a flower of another member of the same species. It is a type of cross fertilization.
AFMC-2005
Morphology of Plants
62572
The thorn of water chestnut (Trapa bispinosa) is the modification of :
1 Petals
2 Sepals
3 Stamens
4 Style
Explanation:
B Water chestnut (Trapa bispinosis) is an annual plant with a submerged stem 12-15 feet long that has fine roots that anchor it to the soil. The fruit of water chestnut is a drupe which develops from a ripened ovary. All parts of the flower (styles, stamens, and petals) are shed off while the fruit develops and just the sepals remains which get modified to form thorns (spines).
Rajasthan PMT-1996
Morphology of Plants
62573
The nature of a fruit developing from a flower depends on the type of:
1 gynoecium
2 pollination
3 fertilization
4 androecium
Explanation:
A The nature of a fruit developing from a flower depends on the type of gynoecium. It is the female reproductive portion as well as the innermost whorl in a flower. Carpel is the main component of gynoecium that consists of ovary, style and stigma.
Karnataka CET-2002
Morphology of Plants
62574
The expression gynoecium is apocarpous implies that the
1 gynoecium comprises only one pistil which is fused with the stamen
2 gynoecium comprises more than one carpel which are free from each other
3 gynoecium comprises only one carpel which is free
4 gynoecium comprises more than one carpel which are fused
Explanation:
B The expression gynoecium is apocarpous implies that the gynoecium comprises more than one carpel which are free from each other.
DUMET-2010
Morphology of Plants
62575
The spice saffron is obtained from which one of the following?
1 Corolla
2 Stamen
3 Stigma
4 Tender tip of leaf
Explanation:
C Crocus sativus (saffron) belongs to the family Iridaceae. It is a rhizomatous herb. The dried stigma and top of style make the saffron of commerce. The product is obtained from the stigmas of the flowers, 4000 of which are required to produce \(25 \mathrm{gm}\) of saffron.
62571
In some plants, anthers and stigma grow and mature at same time. This phenomenon is called:
1 Homogamy
2 syngamy
3 allogamy
4 fusion
Explanation:
A In homogamy, the anther and stigma of bisexual flowers of some plants mature at the same time. They are brought close to each other to ensure self-pollination. Syngamy means fusion of gametes syngamy is the phenomenon in which male gamete fuses with egg in the embryosac of flowering plants. Allogamy refers to the movement of the pollen grains from the anther of one plant to the stigma of a flower of another member of the same species. It is a type of cross fertilization.
AFMC-2005
Morphology of Plants
62572
The thorn of water chestnut (Trapa bispinosa) is the modification of :
1 Petals
2 Sepals
3 Stamens
4 Style
Explanation:
B Water chestnut (Trapa bispinosis) is an annual plant with a submerged stem 12-15 feet long that has fine roots that anchor it to the soil. The fruit of water chestnut is a drupe which develops from a ripened ovary. All parts of the flower (styles, stamens, and petals) are shed off while the fruit develops and just the sepals remains which get modified to form thorns (spines).
Rajasthan PMT-1996
Morphology of Plants
62573
The nature of a fruit developing from a flower depends on the type of:
1 gynoecium
2 pollination
3 fertilization
4 androecium
Explanation:
A The nature of a fruit developing from a flower depends on the type of gynoecium. It is the female reproductive portion as well as the innermost whorl in a flower. Carpel is the main component of gynoecium that consists of ovary, style and stigma.
Karnataka CET-2002
Morphology of Plants
62574
The expression gynoecium is apocarpous implies that the
1 gynoecium comprises only one pistil which is fused with the stamen
2 gynoecium comprises more than one carpel which are free from each other
3 gynoecium comprises only one carpel which is free
4 gynoecium comprises more than one carpel which are fused
Explanation:
B The expression gynoecium is apocarpous implies that the gynoecium comprises more than one carpel which are free from each other.
DUMET-2010
Morphology of Plants
62575
The spice saffron is obtained from which one of the following?
1 Corolla
2 Stamen
3 Stigma
4 Tender tip of leaf
Explanation:
C Crocus sativus (saffron) belongs to the family Iridaceae. It is a rhizomatous herb. The dried stigma and top of style make the saffron of commerce. The product is obtained from the stigmas of the flowers, 4000 of which are required to produce \(25 \mathrm{gm}\) of saffron.
62571
In some plants, anthers and stigma grow and mature at same time. This phenomenon is called:
1 Homogamy
2 syngamy
3 allogamy
4 fusion
Explanation:
A In homogamy, the anther and stigma of bisexual flowers of some plants mature at the same time. They are brought close to each other to ensure self-pollination. Syngamy means fusion of gametes syngamy is the phenomenon in which male gamete fuses with egg in the embryosac of flowering plants. Allogamy refers to the movement of the pollen grains from the anther of one plant to the stigma of a flower of another member of the same species. It is a type of cross fertilization.
AFMC-2005
Morphology of Plants
62572
The thorn of water chestnut (Trapa bispinosa) is the modification of :
1 Petals
2 Sepals
3 Stamens
4 Style
Explanation:
B Water chestnut (Trapa bispinosis) is an annual plant with a submerged stem 12-15 feet long that has fine roots that anchor it to the soil. The fruit of water chestnut is a drupe which develops from a ripened ovary. All parts of the flower (styles, stamens, and petals) are shed off while the fruit develops and just the sepals remains which get modified to form thorns (spines).
Rajasthan PMT-1996
Morphology of Plants
62573
The nature of a fruit developing from a flower depends on the type of:
1 gynoecium
2 pollination
3 fertilization
4 androecium
Explanation:
A The nature of a fruit developing from a flower depends on the type of gynoecium. It is the female reproductive portion as well as the innermost whorl in a flower. Carpel is the main component of gynoecium that consists of ovary, style and stigma.
Karnataka CET-2002
Morphology of Plants
62574
The expression gynoecium is apocarpous implies that the
1 gynoecium comprises only one pistil which is fused with the stamen
2 gynoecium comprises more than one carpel which are free from each other
3 gynoecium comprises only one carpel which is free
4 gynoecium comprises more than one carpel which are fused
Explanation:
B The expression gynoecium is apocarpous implies that the gynoecium comprises more than one carpel which are free from each other.
DUMET-2010
Morphology of Plants
62575
The spice saffron is obtained from which one of the following?
1 Corolla
2 Stamen
3 Stigma
4 Tender tip of leaf
Explanation:
C Crocus sativus (saffron) belongs to the family Iridaceae. It is a rhizomatous herb. The dried stigma and top of style make the saffron of commerce. The product is obtained from the stigmas of the flowers, 4000 of which are required to produce \(25 \mathrm{gm}\) of saffron.
62571
In some plants, anthers and stigma grow and mature at same time. This phenomenon is called:
1 Homogamy
2 syngamy
3 allogamy
4 fusion
Explanation:
A In homogamy, the anther and stigma of bisexual flowers of some plants mature at the same time. They are brought close to each other to ensure self-pollination. Syngamy means fusion of gametes syngamy is the phenomenon in which male gamete fuses with egg in the embryosac of flowering plants. Allogamy refers to the movement of the pollen grains from the anther of one plant to the stigma of a flower of another member of the same species. It is a type of cross fertilization.
AFMC-2005
Morphology of Plants
62572
The thorn of water chestnut (Trapa bispinosa) is the modification of :
1 Petals
2 Sepals
3 Stamens
4 Style
Explanation:
B Water chestnut (Trapa bispinosis) is an annual plant with a submerged stem 12-15 feet long that has fine roots that anchor it to the soil. The fruit of water chestnut is a drupe which develops from a ripened ovary. All parts of the flower (styles, stamens, and petals) are shed off while the fruit develops and just the sepals remains which get modified to form thorns (spines).
Rajasthan PMT-1996
Morphology of Plants
62573
The nature of a fruit developing from a flower depends on the type of:
1 gynoecium
2 pollination
3 fertilization
4 androecium
Explanation:
A The nature of a fruit developing from a flower depends on the type of gynoecium. It is the female reproductive portion as well as the innermost whorl in a flower. Carpel is the main component of gynoecium that consists of ovary, style and stigma.
Karnataka CET-2002
Morphology of Plants
62574
The expression gynoecium is apocarpous implies that the
1 gynoecium comprises only one pistil which is fused with the stamen
2 gynoecium comprises more than one carpel which are free from each other
3 gynoecium comprises only one carpel which is free
4 gynoecium comprises more than one carpel which are fused
Explanation:
B The expression gynoecium is apocarpous implies that the gynoecium comprises more than one carpel which are free from each other.
DUMET-2010
Morphology of Plants
62575
The spice saffron is obtained from which one of the following?
1 Corolla
2 Stamen
3 Stigma
4 Tender tip of leaf
Explanation:
C Crocus sativus (saffron) belongs to the family Iridaceae. It is a rhizomatous herb. The dried stigma and top of style make the saffron of commerce. The product is obtained from the stigmas of the flowers, 4000 of which are required to produce \(25 \mathrm{gm}\) of saffron.
