The double fertilization is characteristic feature of flowering plants (Angiosperms) in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
NEET - [2017]
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341553
With respect to angiosperms, identify the incorrect pair from the following
1 Antipodals - 2n
2 Vegetative cell of male gametophyte-n
3 Primary endosperm nucleus - 3n
4 Cells of nucellus of ovule - 2n
Explanation:
The three haploid cells situated at the chalazal end are called antipodals or antipodal cells.
KCET - 2014
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341554
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
1 Synergids, primary endosperm nucleus and zygote
2 Antipodals, synergids, and primary endosperm nucleus
3 Synergids, zygote and primary endosperm nucleus
4 Synergids, antipodals and polar nuclei
Explanation:
Synergids are the cells of gametophyte and hence these are haploid. Zygote is formed by fusion of two gametes and thus it is diploid. Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
NEET - 2023
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341555
Syngamy is the process in which
1 Male gamete fuses with female gamete
2 Vegetative cell and tube cell fuse
3 Pollen tube enter to the ovule by chalaza
4 Pollen tube enter to the ovule by micropyle
Explanation:
Syngamy is fusion of male gamete with female gamete resulting in the formation of a zygote
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341556
Triple fusion is characteristic of
1 Angiosperms
2 Thallophytes
3 Bryophytes
4 Pteridophytes
Explanation:
Double fertilization & triple fusion is seen only in angiosperms.
The double fertilization is characteristic feature of flowering plants (Angiosperms) in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
NEET - [2017]
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341553
With respect to angiosperms, identify the incorrect pair from the following
1 Antipodals - 2n
2 Vegetative cell of male gametophyte-n
3 Primary endosperm nucleus - 3n
4 Cells of nucellus of ovule - 2n
Explanation:
The three haploid cells situated at the chalazal end are called antipodals or antipodal cells.
KCET - 2014
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341554
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
1 Synergids, primary endosperm nucleus and zygote
2 Antipodals, synergids, and primary endosperm nucleus
3 Synergids, zygote and primary endosperm nucleus
4 Synergids, antipodals and polar nuclei
Explanation:
Synergids are the cells of gametophyte and hence these are haploid. Zygote is formed by fusion of two gametes and thus it is diploid. Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
NEET - 2023
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341555
Syngamy is the process in which
1 Male gamete fuses with female gamete
2 Vegetative cell and tube cell fuse
3 Pollen tube enter to the ovule by chalaza
4 Pollen tube enter to the ovule by micropyle
Explanation:
Syngamy is fusion of male gamete with female gamete resulting in the formation of a zygote
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341556
Triple fusion is characteristic of
1 Angiosperms
2 Thallophytes
3 Bryophytes
4 Pteridophytes
Explanation:
Double fertilization & triple fusion is seen only in angiosperms.
The double fertilization is characteristic feature of flowering plants (Angiosperms) in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
NEET - [2017]
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341553
With respect to angiosperms, identify the incorrect pair from the following
1 Antipodals - 2n
2 Vegetative cell of male gametophyte-n
3 Primary endosperm nucleus - 3n
4 Cells of nucellus of ovule - 2n
Explanation:
The three haploid cells situated at the chalazal end are called antipodals or antipodal cells.
KCET - 2014
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341554
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
1 Synergids, primary endosperm nucleus and zygote
2 Antipodals, synergids, and primary endosperm nucleus
3 Synergids, zygote and primary endosperm nucleus
4 Synergids, antipodals and polar nuclei
Explanation:
Synergids are the cells of gametophyte and hence these are haploid. Zygote is formed by fusion of two gametes and thus it is diploid. Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
NEET - 2023
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341555
Syngamy is the process in which
1 Male gamete fuses with female gamete
2 Vegetative cell and tube cell fuse
3 Pollen tube enter to the ovule by chalaza
4 Pollen tube enter to the ovule by micropyle
Explanation:
Syngamy is fusion of male gamete with female gamete resulting in the formation of a zygote
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341556
Triple fusion is characteristic of
1 Angiosperms
2 Thallophytes
3 Bryophytes
4 Pteridophytes
Explanation:
Double fertilization & triple fusion is seen only in angiosperms.
The double fertilization is characteristic feature of flowering plants (Angiosperms) in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
NEET - [2017]
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341553
With respect to angiosperms, identify the incorrect pair from the following
1 Antipodals - 2n
2 Vegetative cell of male gametophyte-n
3 Primary endosperm nucleus - 3n
4 Cells of nucellus of ovule - 2n
Explanation:
The three haploid cells situated at the chalazal end are called antipodals or antipodal cells.
KCET - 2014
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341554
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
1 Synergids, primary endosperm nucleus and zygote
2 Antipodals, synergids, and primary endosperm nucleus
3 Synergids, zygote and primary endosperm nucleus
4 Synergids, antipodals and polar nuclei
Explanation:
Synergids are the cells of gametophyte and hence these are haploid. Zygote is formed by fusion of two gametes and thus it is diploid. Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
NEET - 2023
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341555
Syngamy is the process in which
1 Male gamete fuses with female gamete
2 Vegetative cell and tube cell fuse
3 Pollen tube enter to the ovule by chalaza
4 Pollen tube enter to the ovule by micropyle
Explanation:
Syngamy is fusion of male gamete with female gamete resulting in the formation of a zygote
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341556
Triple fusion is characteristic of
1 Angiosperms
2 Thallophytes
3 Bryophytes
4 Pteridophytes
Explanation:
Double fertilization & triple fusion is seen only in angiosperms.
The double fertilization is characteristic feature of flowering plants (Angiosperms) in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
NEET - [2017]
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341553
With respect to angiosperms, identify the incorrect pair from the following
1 Antipodals - 2n
2 Vegetative cell of male gametophyte-n
3 Primary endosperm nucleus - 3n
4 Cells of nucellus of ovule - 2n
Explanation:
The three haploid cells situated at the chalazal end are called antipodals or antipodal cells.
KCET - 2014
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341554
In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :
1 Synergids, primary endosperm nucleus and zygote
2 Antipodals, synergids, and primary endosperm nucleus
3 Synergids, zygote and primary endosperm nucleus
4 Synergids, antipodals and polar nuclei
Explanation:
Synergids are the cells of gametophyte and hence these are haploid. Zygote is formed by fusion of two gametes and thus it is diploid. Primary endosperm nucleus is formed by the fusion of diploid secondary nucleus with a male gamete. Therefore, it is triploid.
NEET - 2023
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341555
Syngamy is the process in which
1 Male gamete fuses with female gamete
2 Vegetative cell and tube cell fuse
3 Pollen tube enter to the ovule by chalaza
4 Pollen tube enter to the ovule by micropyle
Explanation:
Syngamy is fusion of male gamete with female gamete resulting in the formation of a zygote
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341556
Triple fusion is characteristic of
1 Angiosperms
2 Thallophytes
3 Bryophytes
4 Pteridophytes
Explanation:
Double fertilization & triple fusion is seen only in angiosperms.
