262829
During which of the following formation free nuclear division occurs?
1 Flower
2 Endosperm
3 Gametes
4 Fruit.
Explanation:
Free nuclear division specifically process called mitotic division or nuclear division without cytokinesis in angiosperms, free nuclear division occurs during endosperm formation. It forms as result of fusion of two polar nuclei in the embryo sac with one of the sperm cell from a pollen grain this fusion from a triploid (3n) nucleus. - Hence, the endosperm is called as liquid endosperm as cell wall is not formed after mitotic division. It is seen is coconut. Bean seed Corn seed
AIIMS-2001
Sexual Reproduction in Flowering Plants
262841
The diagram of the section of a maize grain is given below. Identify the parts labelled A, B, C and \(D\).
1 A - Endosperm, B - Coleoptile, C - Scutellum, D - Aleurone layer
2 A - Cotyleon, B - Coleoptile, C - Scutellum, D - Epithellium
3 A - Endosperm, B - Coleoptile, C - Scutellum, D - Epithellium
4 A - Endosperm, B - Coleorrhiza, C - Scutellum, D - Epithellium
Explanation:
Exp. A Maize grain is monocotyledonous seed. It belongs to the family poaceae. The upper big part is endosperm while the lower small part is embryo. The endosperm is covered by a protein layer called aleurone layer. The lower small part contains a single shielded cotyledon called scutellum. It differentiate into plumule and radical. Plumule is shoot tip and covered by a protective sheath called coleoptiles.
AIPMT-2008
Sexual Reproduction in Flowering Plants
262815
Testa and Tegmen of the seed coat represent
1 Dried Sepals
2 Dried Petals
3 Dried Integuments
4 Dried Tepals
Explanation:
The testa and tegmen are term used to describe different layers of the seed coat, which represents the dried integument of a seed. The testa is the outer layer, while the tegmen is the inner layer protect the seed and help in various environmental condition.
Karnataka CET-2019
Sexual Reproduction in Flowering Plants
262816
Development of an embryo without fertilization is called as
1 Apomixis
2 Polyembryony
3 Parthenocarpy
4 Parthenogenesis
Explanation:
Development of an embryo without fertilization is called as parthenogenesis. Apomixis is an asexual mode of seed formation that produces clonal progeny with maternal genotype. Parthenocarpy is the natural or artificially induced production of fruit formation without the fertilization of ovules.
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Sexual Reproduction in Flowering Plants
262829
During which of the following formation free nuclear division occurs?
1 Flower
2 Endosperm
3 Gametes
4 Fruit.
Explanation:
Free nuclear division specifically process called mitotic division or nuclear division without cytokinesis in angiosperms, free nuclear division occurs during endosperm formation. It forms as result of fusion of two polar nuclei in the embryo sac with one of the sperm cell from a pollen grain this fusion from a triploid (3n) nucleus. - Hence, the endosperm is called as liquid endosperm as cell wall is not formed after mitotic division. It is seen is coconut. Bean seed Corn seed
AIIMS-2001
Sexual Reproduction in Flowering Plants
262841
The diagram of the section of a maize grain is given below. Identify the parts labelled A, B, C and \(D\).
1 A - Endosperm, B - Coleoptile, C - Scutellum, D - Aleurone layer
2 A - Cotyleon, B - Coleoptile, C - Scutellum, D - Epithellium
3 A - Endosperm, B - Coleoptile, C - Scutellum, D - Epithellium
4 A - Endosperm, B - Coleorrhiza, C - Scutellum, D - Epithellium
Explanation:
Exp. A Maize grain is monocotyledonous seed. It belongs to the family poaceae. The upper big part is endosperm while the lower small part is embryo. The endosperm is covered by a protein layer called aleurone layer. The lower small part contains a single shielded cotyledon called scutellum. It differentiate into plumule and radical. Plumule is shoot tip and covered by a protective sheath called coleoptiles.
AIPMT-2008
Sexual Reproduction in Flowering Plants
262815
Testa and Tegmen of the seed coat represent
1 Dried Sepals
2 Dried Petals
3 Dried Integuments
4 Dried Tepals
Explanation:
The testa and tegmen are term used to describe different layers of the seed coat, which represents the dried integument of a seed. The testa is the outer layer, while the tegmen is the inner layer protect the seed and help in various environmental condition.
Karnataka CET-2019
Sexual Reproduction in Flowering Plants
262816
Development of an embryo without fertilization is called as
1 Apomixis
2 Polyembryony
3 Parthenocarpy
4 Parthenogenesis
Explanation:
Development of an embryo without fertilization is called as parthenogenesis. Apomixis is an asexual mode of seed formation that produces clonal progeny with maternal genotype. Parthenocarpy is the natural or artificially induced production of fruit formation without the fertilization of ovules.
262829
During which of the following formation free nuclear division occurs?
1 Flower
2 Endosperm
3 Gametes
4 Fruit.
Explanation:
Free nuclear division specifically process called mitotic division or nuclear division without cytokinesis in angiosperms, free nuclear division occurs during endosperm formation. It forms as result of fusion of two polar nuclei in the embryo sac with one of the sperm cell from a pollen grain this fusion from a triploid (3n) nucleus. - Hence, the endosperm is called as liquid endosperm as cell wall is not formed after mitotic division. It is seen is coconut. Bean seed Corn seed
AIIMS-2001
Sexual Reproduction in Flowering Plants
262841
The diagram of the section of a maize grain is given below. Identify the parts labelled A, B, C and \(D\).
1 A - Endosperm, B - Coleoptile, C - Scutellum, D - Aleurone layer
2 A - Cotyleon, B - Coleoptile, C - Scutellum, D - Epithellium
3 A - Endosperm, B - Coleoptile, C - Scutellum, D - Epithellium
4 A - Endosperm, B - Coleorrhiza, C - Scutellum, D - Epithellium
Explanation:
Exp. A Maize grain is monocotyledonous seed. It belongs to the family poaceae. The upper big part is endosperm while the lower small part is embryo. The endosperm is covered by a protein layer called aleurone layer. The lower small part contains a single shielded cotyledon called scutellum. It differentiate into plumule and radical. Plumule is shoot tip and covered by a protective sheath called coleoptiles.
AIPMT-2008
Sexual Reproduction in Flowering Plants
262815
Testa and Tegmen of the seed coat represent
1 Dried Sepals
2 Dried Petals
3 Dried Integuments
4 Dried Tepals
Explanation:
The testa and tegmen are term used to describe different layers of the seed coat, which represents the dried integument of a seed. The testa is the outer layer, while the tegmen is the inner layer protect the seed and help in various environmental condition.
Karnataka CET-2019
Sexual Reproduction in Flowering Plants
262816
Development of an embryo without fertilization is called as
1 Apomixis
2 Polyembryony
3 Parthenocarpy
4 Parthenogenesis
Explanation:
Development of an embryo without fertilization is called as parthenogenesis. Apomixis is an asexual mode of seed formation that produces clonal progeny with maternal genotype. Parthenocarpy is the natural or artificially induced production of fruit formation without the fertilization of ovules.
262829
During which of the following formation free nuclear division occurs?
1 Flower
2 Endosperm
3 Gametes
4 Fruit.
Explanation:
Free nuclear division specifically process called mitotic division or nuclear division without cytokinesis in angiosperms, free nuclear division occurs during endosperm formation. It forms as result of fusion of two polar nuclei in the embryo sac with one of the sperm cell from a pollen grain this fusion from a triploid (3n) nucleus. - Hence, the endosperm is called as liquid endosperm as cell wall is not formed after mitotic division. It is seen is coconut. Bean seed Corn seed
AIIMS-2001
Sexual Reproduction in Flowering Plants
262841
The diagram of the section of a maize grain is given below. Identify the parts labelled A, B, C and \(D\).
1 A - Endosperm, B - Coleoptile, C - Scutellum, D - Aleurone layer
2 A - Cotyleon, B - Coleoptile, C - Scutellum, D - Epithellium
3 A - Endosperm, B - Coleoptile, C - Scutellum, D - Epithellium
4 A - Endosperm, B - Coleorrhiza, C - Scutellum, D - Epithellium
Explanation:
Exp. A Maize grain is monocotyledonous seed. It belongs to the family poaceae. The upper big part is endosperm while the lower small part is embryo. The endosperm is covered by a protein layer called aleurone layer. The lower small part contains a single shielded cotyledon called scutellum. It differentiate into plumule and radical. Plumule is shoot tip and covered by a protective sheath called coleoptiles.
AIPMT-2008
Sexual Reproduction in Flowering Plants
262815
Testa and Tegmen of the seed coat represent
1 Dried Sepals
2 Dried Petals
3 Dried Integuments
4 Dried Tepals
Explanation:
The testa and tegmen are term used to describe different layers of the seed coat, which represents the dried integument of a seed. The testa is the outer layer, while the tegmen is the inner layer protect the seed and help in various environmental condition.
Karnataka CET-2019
Sexual Reproduction in Flowering Plants
262816
Development of an embryo without fertilization is called as
1 Apomixis
2 Polyembryony
3 Parthenocarpy
4 Parthenogenesis
Explanation:
Development of an embryo without fertilization is called as parthenogenesis. Apomixis is an asexual mode of seed formation that produces clonal progeny with maternal genotype. Parthenocarpy is the natural or artificially induced production of fruit formation without the fertilization of ovules.
