262620
The wheat grain has an embryo with one large shield-shaped cotyledon known as:
1 Coleoptile
2 Epiblast
3 Coleorrhiza
4 Scutellum
Explanation:
The shield -shaped cotyledons of a monocotyledon (Such as a grass) is called scutellum. In some grasses remains second cotyledons occurs called the epiblast, and covering of hypocotyle called coleorrhiza and covering of epicotyle called coleoptile.
AIPMT (Re-Exam)-2015
Sexual Reproduction in Flowering Plants
262621
Male gametophyte with least number of cell is present in:
1 Pteris
2 Funaria
3 Lilium
4 Pinus
Explanation:
Male gametophyte with least number of cell is present in lilium. It is angiospermic plant in which male gametophyte is 3 celled and highly reduced gametophyte as compared to funaria (Bryophyte). Fritillaria type endosperm first observed by Bambaciani (1928) in fritillaria and lilium.
AIPMT-2014
Sexual Reproduction in Flowering Plants
262622
Bicarpellary ovary with obliquely placed septum is seen in :
1 Sesbania
2 Brassica
3 Aloe
4 Solanum
Explanation:
One of the most important characteristic features of the family Solanceae is Bicarpellary gynoecium with oblique. In this, the ovary is placed obliquely in a diagonal plane, shows axile placentation, and superior ovary. - In botany, Bicarpellary gynoecium (of an ovary) means having two carpels. Oblique ovary means the ovary is placed obliquely in a diagonal plane.
NEET (Odisha)-2019
Sexual Reproduction in Flowering Plants
262623
Which is the most common type of embryo sac in angiosperms?
1 Bisporic with two sequential mitotic divisions
2 Tetrasporic with one mitotic stage of divisions
3 Monosporic with three sequential mitotic divisions
4 Monosporic with two sequential mitotic divisions
Explanation:
The functional megaspore (haploid) represents the first cell of the female gametophyte.In monosporic embryo sac, the megaspore mother cell divide miotically to form dyad than tetrad. Out of four megaspore three megaspores towards the micropyle side degenerate and chalazal megaspore becomes functional. The functional megaspore undergoes three sequential mitosis divisions and gives rise to the 8 nucleate and 7 celled mature embryo sac.
262620
The wheat grain has an embryo with one large shield-shaped cotyledon known as:
1 Coleoptile
2 Epiblast
3 Coleorrhiza
4 Scutellum
Explanation:
The shield -shaped cotyledons of a monocotyledon (Such as a grass) is called scutellum. In some grasses remains second cotyledons occurs called the epiblast, and covering of hypocotyle called coleorrhiza and covering of epicotyle called coleoptile.
AIPMT (Re-Exam)-2015
Sexual Reproduction in Flowering Plants
262621
Male gametophyte with least number of cell is present in:
1 Pteris
2 Funaria
3 Lilium
4 Pinus
Explanation:
Male gametophyte with least number of cell is present in lilium. It is angiospermic plant in which male gametophyte is 3 celled and highly reduced gametophyte as compared to funaria (Bryophyte). Fritillaria type endosperm first observed by Bambaciani (1928) in fritillaria and lilium.
AIPMT-2014
Sexual Reproduction in Flowering Plants
262622
Bicarpellary ovary with obliquely placed septum is seen in :
1 Sesbania
2 Brassica
3 Aloe
4 Solanum
Explanation:
One of the most important characteristic features of the family Solanceae is Bicarpellary gynoecium with oblique. In this, the ovary is placed obliquely in a diagonal plane, shows axile placentation, and superior ovary. - In botany, Bicarpellary gynoecium (of an ovary) means having two carpels. Oblique ovary means the ovary is placed obliquely in a diagonal plane.
NEET (Odisha)-2019
Sexual Reproduction in Flowering Plants
262623
Which is the most common type of embryo sac in angiosperms?
1 Bisporic with two sequential mitotic divisions
2 Tetrasporic with one mitotic stage of divisions
3 Monosporic with three sequential mitotic divisions
4 Monosporic with two sequential mitotic divisions
Explanation:
The functional megaspore (haploid) represents the first cell of the female gametophyte.In monosporic embryo sac, the megaspore mother cell divide miotically to form dyad than tetrad. Out of four megaspore three megaspores towards the micropyle side degenerate and chalazal megaspore becomes functional. The functional megaspore undergoes three sequential mitosis divisions and gives rise to the 8 nucleate and 7 celled mature embryo sac.
262620
The wheat grain has an embryo with one large shield-shaped cotyledon known as:
1 Coleoptile
2 Epiblast
3 Coleorrhiza
4 Scutellum
Explanation:
The shield -shaped cotyledons of a monocotyledon (Such as a grass) is called scutellum. In some grasses remains second cotyledons occurs called the epiblast, and covering of hypocotyle called coleorrhiza and covering of epicotyle called coleoptile.
AIPMT (Re-Exam)-2015
Sexual Reproduction in Flowering Plants
262621
Male gametophyte with least number of cell is present in:
1 Pteris
2 Funaria
3 Lilium
4 Pinus
Explanation:
Male gametophyte with least number of cell is present in lilium. It is angiospermic plant in which male gametophyte is 3 celled and highly reduced gametophyte as compared to funaria (Bryophyte). Fritillaria type endosperm first observed by Bambaciani (1928) in fritillaria and lilium.
AIPMT-2014
Sexual Reproduction in Flowering Plants
262622
Bicarpellary ovary with obliquely placed septum is seen in :
1 Sesbania
2 Brassica
3 Aloe
4 Solanum
Explanation:
One of the most important characteristic features of the family Solanceae is Bicarpellary gynoecium with oblique. In this, the ovary is placed obliquely in a diagonal plane, shows axile placentation, and superior ovary. - In botany, Bicarpellary gynoecium (of an ovary) means having two carpels. Oblique ovary means the ovary is placed obliquely in a diagonal plane.
NEET (Odisha)-2019
Sexual Reproduction in Flowering Plants
262623
Which is the most common type of embryo sac in angiosperms?
1 Bisporic with two sequential mitotic divisions
2 Tetrasporic with one mitotic stage of divisions
3 Monosporic with three sequential mitotic divisions
4 Monosporic with two sequential mitotic divisions
Explanation:
The functional megaspore (haploid) represents the first cell of the female gametophyte.In monosporic embryo sac, the megaspore mother cell divide miotically to form dyad than tetrad. Out of four megaspore three megaspores towards the micropyle side degenerate and chalazal megaspore becomes functional. The functional megaspore undergoes three sequential mitosis divisions and gives rise to the 8 nucleate and 7 celled mature embryo sac.
262620
The wheat grain has an embryo with one large shield-shaped cotyledon known as:
1 Coleoptile
2 Epiblast
3 Coleorrhiza
4 Scutellum
Explanation:
The shield -shaped cotyledons of a monocotyledon (Such as a grass) is called scutellum. In some grasses remains second cotyledons occurs called the epiblast, and covering of hypocotyle called coleorrhiza and covering of epicotyle called coleoptile.
AIPMT (Re-Exam)-2015
Sexual Reproduction in Flowering Plants
262621
Male gametophyte with least number of cell is present in:
1 Pteris
2 Funaria
3 Lilium
4 Pinus
Explanation:
Male gametophyte with least number of cell is present in lilium. It is angiospermic plant in which male gametophyte is 3 celled and highly reduced gametophyte as compared to funaria (Bryophyte). Fritillaria type endosperm first observed by Bambaciani (1928) in fritillaria and lilium.
AIPMT-2014
Sexual Reproduction in Flowering Plants
262622
Bicarpellary ovary with obliquely placed septum is seen in :
1 Sesbania
2 Brassica
3 Aloe
4 Solanum
Explanation:
One of the most important characteristic features of the family Solanceae is Bicarpellary gynoecium with oblique. In this, the ovary is placed obliquely in a diagonal plane, shows axile placentation, and superior ovary. - In botany, Bicarpellary gynoecium (of an ovary) means having two carpels. Oblique ovary means the ovary is placed obliquely in a diagonal plane.
NEET (Odisha)-2019
Sexual Reproduction in Flowering Plants
262623
Which is the most common type of embryo sac in angiosperms?
1 Bisporic with two sequential mitotic divisions
2 Tetrasporic with one mitotic stage of divisions
3 Monosporic with three sequential mitotic divisions
4 Monosporic with two sequential mitotic divisions
Explanation:
The functional megaspore (haploid) represents the first cell of the female gametophyte.In monosporic embryo sac, the megaspore mother cell divide miotically to form dyad than tetrad. Out of four megaspore three megaspores towards the micropyle side degenerate and chalazal megaspore becomes functional. The functional megaspore undergoes three sequential mitosis divisions and gives rise to the 8 nucleate and 7 celled mature embryo sac.
