341561
Total number of nuclei involved in the double fertilization in angiosperms are
1 2
2 3
3 4
4 5
Explanation:
Double fertilization includes fusion of haploid male gamete with the haploid egg (syngamy) and another haploid male gamete fuses with diploid polar nuclei.Hence total number of nucleus involved is Five.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341562
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
1 16
2 24
3 32
4 8
Explanation:
Synergids are two, short- lived, haploid cells lying close to the egg in mature embryosc of the flowering plant ovule. While the endosperm is triploid tissue formed after triple fusion. Thus if the synergid is 8 chromosomes, the aleurone layer (part of the endosperm) will have just triple of that of chromosomes in the synergids i.e., 24 chromosomes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341563
Identify the wrong statement
1 Syngamy results in the formation of zygote
2 Primary endosperm nucleus is diploid
3 Triple fusion is fusion of three haploid nuclei
4 Primary endosperm cell becomes endosperm while the zygote develops into an embryo
Explanation:
Male gamete moves towards two polar nuclei located in the central cell and fuses with them to produce triploid primary endosperm nucleus (PEN)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341564
The following figure represents fertilised embryo sac. What does X & Y represent.
341561
Total number of nuclei involved in the double fertilization in angiosperms are
1 2
2 3
3 4
4 5
Explanation:
Double fertilization includes fusion of haploid male gamete with the haploid egg (syngamy) and another haploid male gamete fuses with diploid polar nuclei.Hence total number of nucleus involved is Five.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341562
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
1 16
2 24
3 32
4 8
Explanation:
Synergids are two, short- lived, haploid cells lying close to the egg in mature embryosc of the flowering plant ovule. While the endosperm is triploid tissue formed after triple fusion. Thus if the synergid is 8 chromosomes, the aleurone layer (part of the endosperm) will have just triple of that of chromosomes in the synergids i.e., 24 chromosomes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341563
Identify the wrong statement
1 Syngamy results in the formation of zygote
2 Primary endosperm nucleus is diploid
3 Triple fusion is fusion of three haploid nuclei
4 Primary endosperm cell becomes endosperm while the zygote develops into an embryo
Explanation:
Male gamete moves towards two polar nuclei located in the central cell and fuses with them to produce triploid primary endosperm nucleus (PEN)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341564
The following figure represents fertilised embryo sac. What does X & Y represent.
341561
Total number of nuclei involved in the double fertilization in angiosperms are
1 2
2 3
3 4
4 5
Explanation:
Double fertilization includes fusion of haploid male gamete with the haploid egg (syngamy) and another haploid male gamete fuses with diploid polar nuclei.Hence total number of nucleus involved is Five.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341562
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
1 16
2 24
3 32
4 8
Explanation:
Synergids are two, short- lived, haploid cells lying close to the egg in mature embryosc of the flowering plant ovule. While the endosperm is triploid tissue formed after triple fusion. Thus if the synergid is 8 chromosomes, the aleurone layer (part of the endosperm) will have just triple of that of chromosomes in the synergids i.e., 24 chromosomes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341563
Identify the wrong statement
1 Syngamy results in the formation of zygote
2 Primary endosperm nucleus is diploid
3 Triple fusion is fusion of three haploid nuclei
4 Primary endosperm cell becomes endosperm while the zygote develops into an embryo
Explanation:
Male gamete moves towards two polar nuclei located in the central cell and fuses with them to produce triploid primary endosperm nucleus (PEN)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341564
The following figure represents fertilised embryo sac. What does X & Y represent.
341561
Total number of nuclei involved in the double fertilization in angiosperms are
1 2
2 3
3 4
4 5
Explanation:
Double fertilization includes fusion of haploid male gamete with the haploid egg (syngamy) and another haploid male gamete fuses with diploid polar nuclei.Hence total number of nucleus involved is Five.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341562
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?
1 16
2 24
3 32
4 8
Explanation:
Synergids are two, short- lived, haploid cells lying close to the egg in mature embryosc of the flowering plant ovule. While the endosperm is triploid tissue formed after triple fusion. Thus if the synergid is 8 chromosomes, the aleurone layer (part of the endosperm) will have just triple of that of chromosomes in the synergids i.e., 24 chromosomes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341563
Identify the wrong statement
1 Syngamy results in the formation of zygote
2 Primary endosperm nucleus is diploid
3 Triple fusion is fusion of three haploid nuclei
4 Primary endosperm cell becomes endosperm while the zygote develops into an embryo
Explanation:
Male gamete moves towards two polar nuclei located in the central cell and fuses with them to produce triploid primary endosperm nucleus (PEN)
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341564
The following figure represents fertilised embryo sac. What does X & Y represent.
