262597
Which one of the following represents an ovule, where the embryo sac becomes horseshoe shaped and the funiculus and micropyle are close to each other?
1 Circinotropous
2 Anatropous
3 Amphitropous
4 Atropous
Explanation:
Amphitropous ovule is similar to hemitropous ovule but embryo sac and nucellus becomes "horse shoe shaped e.g.- Poppy, Lemna, Alisma etc.
JIPMER-2007
Sexual Reproduction in Flowering Plants
262602
Megaspores are produced from the megaspore mother cells after
1 Meiotic division
2 Mitotic division
3 Formation of a thick wall
4 Differentiation
Explanation:
Megaspore is the first cell of female gametophyte haploid, unicellular, uninucleate retained within the nucellus of ovule. It is formed from megaspore mother cell after meiotic division.
NEET (Karnataka)-2013
Sexual Reproduction in Flowering Plants
262603
Embryo of sunflower have :
1 Two cotyledons
2 One cotyledons
3 Eight cotyledons
4 Cotyledons absent
Explanation:
Sun flower (Helianthus annus) belongs to the family Asteraceae (compositae). It is dicot plant i.e.- they have two cotyledons.
AIPMT-1998
Sexual Reproduction in Flowering Plants
262649
In a flowering plant, megaspore develops into an embryo sac, which contains :
1 4 cell, one of which is an egg
2 6 cell, one of which is an egg
3 8 cell, one of which is an egg
4 none of these
Explanation:
In a flowering plant, megaspore develops into an embryo sac. Which contain 7 cells and 8 nuclei. 3 cells are form egg apparatus mid of which called egg cell and present at micropylar end. On cell present at middle of the embryo sac called secondary nuclei. Which contain two nuclei. And rest 3 cells are form antipodal cell and present at chalazal end.
262597
Which one of the following represents an ovule, where the embryo sac becomes horseshoe shaped and the funiculus and micropyle are close to each other?
1 Circinotropous
2 Anatropous
3 Amphitropous
4 Atropous
Explanation:
Amphitropous ovule is similar to hemitropous ovule but embryo sac and nucellus becomes "horse shoe shaped e.g.- Poppy, Lemna, Alisma etc.
JIPMER-2007
Sexual Reproduction in Flowering Plants
262602
Megaspores are produced from the megaspore mother cells after
1 Meiotic division
2 Mitotic division
3 Formation of a thick wall
4 Differentiation
Explanation:
Megaspore is the first cell of female gametophyte haploid, unicellular, uninucleate retained within the nucellus of ovule. It is formed from megaspore mother cell after meiotic division.
NEET (Karnataka)-2013
Sexual Reproduction in Flowering Plants
262603
Embryo of sunflower have :
1 Two cotyledons
2 One cotyledons
3 Eight cotyledons
4 Cotyledons absent
Explanation:
Sun flower (Helianthus annus) belongs to the family Asteraceae (compositae). It is dicot plant i.e.- they have two cotyledons.
AIPMT-1998
Sexual Reproduction in Flowering Plants
262649
In a flowering plant, megaspore develops into an embryo sac, which contains :
1 4 cell, one of which is an egg
2 6 cell, one of which is an egg
3 8 cell, one of which is an egg
4 none of these
Explanation:
In a flowering plant, megaspore develops into an embryo sac. Which contain 7 cells and 8 nuclei. 3 cells are form egg apparatus mid of which called egg cell and present at micropylar end. On cell present at middle of the embryo sac called secondary nuclei. Which contain two nuclei. And rest 3 cells are form antipodal cell and present at chalazal end.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Sexual Reproduction in Flowering Plants
262597
Which one of the following represents an ovule, where the embryo sac becomes horseshoe shaped and the funiculus and micropyle are close to each other?
1 Circinotropous
2 Anatropous
3 Amphitropous
4 Atropous
Explanation:
Amphitropous ovule is similar to hemitropous ovule but embryo sac and nucellus becomes "horse shoe shaped e.g.- Poppy, Lemna, Alisma etc.
JIPMER-2007
Sexual Reproduction in Flowering Plants
262602
Megaspores are produced from the megaspore mother cells after
1 Meiotic division
2 Mitotic division
3 Formation of a thick wall
4 Differentiation
Explanation:
Megaspore is the first cell of female gametophyte haploid, unicellular, uninucleate retained within the nucellus of ovule. It is formed from megaspore mother cell after meiotic division.
NEET (Karnataka)-2013
Sexual Reproduction in Flowering Plants
262603
Embryo of sunflower have :
1 Two cotyledons
2 One cotyledons
3 Eight cotyledons
4 Cotyledons absent
Explanation:
Sun flower (Helianthus annus) belongs to the family Asteraceae (compositae). It is dicot plant i.e.- they have two cotyledons.
AIPMT-1998
Sexual Reproduction in Flowering Plants
262649
In a flowering plant, megaspore develops into an embryo sac, which contains :
1 4 cell, one of which is an egg
2 6 cell, one of which is an egg
3 8 cell, one of which is an egg
4 none of these
Explanation:
In a flowering plant, megaspore develops into an embryo sac. Which contain 7 cells and 8 nuclei. 3 cells are form egg apparatus mid of which called egg cell and present at micropylar end. On cell present at middle of the embryo sac called secondary nuclei. Which contain two nuclei. And rest 3 cells are form antipodal cell and present at chalazal end.
262597
Which one of the following represents an ovule, where the embryo sac becomes horseshoe shaped and the funiculus and micropyle are close to each other?
1 Circinotropous
2 Anatropous
3 Amphitropous
4 Atropous
Explanation:
Amphitropous ovule is similar to hemitropous ovule but embryo sac and nucellus becomes "horse shoe shaped e.g.- Poppy, Lemna, Alisma etc.
JIPMER-2007
Sexual Reproduction in Flowering Plants
262602
Megaspores are produced from the megaspore mother cells after
1 Meiotic division
2 Mitotic division
3 Formation of a thick wall
4 Differentiation
Explanation:
Megaspore is the first cell of female gametophyte haploid, unicellular, uninucleate retained within the nucellus of ovule. It is formed from megaspore mother cell after meiotic division.
NEET (Karnataka)-2013
Sexual Reproduction in Flowering Plants
262603
Embryo of sunflower have :
1 Two cotyledons
2 One cotyledons
3 Eight cotyledons
4 Cotyledons absent
Explanation:
Sun flower (Helianthus annus) belongs to the family Asteraceae (compositae). It is dicot plant i.e.- they have two cotyledons.
AIPMT-1998
Sexual Reproduction in Flowering Plants
262649
In a flowering plant, megaspore develops into an embryo sac, which contains :
1 4 cell, one of which is an egg
2 6 cell, one of which is an egg
3 8 cell, one of which is an egg
4 none of these
Explanation:
In a flowering plant, megaspore develops into an embryo sac. Which contain 7 cells and 8 nuclei. 3 cells are form egg apparatus mid of which called egg cell and present at micropylar end. On cell present at middle of the embryo sac called secondary nuclei. Which contain two nuclei. And rest 3 cells are form antipodal cell and present at chalazal end.