262607
In apple the chromosome number of gametes is 17. What is the chromosome number in its Primary Endosperm Nucleus (PEN)?
1 34
2 68
3 17
4 51
Explanation:
Apple is a angiospermic plant. The gametes are haploid. Angiospermic plants are triploid, chromosome number of gametes \(=17\). So the number of chromosomes in the primary endosperm nucleus is \(=51\).
Karnataka CET-2020
Sexual Reproduction in Flowering Plants
262609
If root of a flowering plant has 24 chromosomes, then its gamete has how many chromosomes?
1 24
2 12
3 4
4 8
Explanation:
If root of a flowering plant has 24 chromosomes, then its gamete has 12 chromosomes because the root cell of flowering plant is diploid, \((2 n=24)\) while gamete is haploid, \((n=12)\).
JIPMER-2009
Sexual Reproduction in Flowering Plants
262629
Point out the odd one.
1 Nucellus
2 Embryo sac
3 Micropyle
4 Pollen grain
Explanation:
They are all found in ovule (Nucellus, Emryo sac and micropyle) while pollen grain is male gametophyte. The scientific study of living and fossilized pollen grains is known as polynology.
AIPMT-1991
Sexual Reproduction in Flowering Plants
262637
The plant part which consists of two generations, one within the other, is:
1 Germinated pollen grain
2 Embryo
3 Unfertilized ovule
4 Seed
Explanation:
Embryo sac inside the ovule and pollen grains inside the anther refers to the plant parts that consist of two generations one within the other. The zygote develops into an embryo or new saprophyte. The embryo (2n) is surrounded by female gametophyte (n), the latter by seed coat \((2 n)\). In this way seed contains three generations locked one within another of these two generation occurs with in embryo.
262607
In apple the chromosome number of gametes is 17. What is the chromosome number in its Primary Endosperm Nucleus (PEN)?
1 34
2 68
3 17
4 51
Explanation:
Apple is a angiospermic plant. The gametes are haploid. Angiospermic plants are triploid, chromosome number of gametes \(=17\). So the number of chromosomes in the primary endosperm nucleus is \(=51\).
Karnataka CET-2020
Sexual Reproduction in Flowering Plants
262609
If root of a flowering plant has 24 chromosomes, then its gamete has how many chromosomes?
1 24
2 12
3 4
4 8
Explanation:
If root of a flowering plant has 24 chromosomes, then its gamete has 12 chromosomes because the root cell of flowering plant is diploid, \((2 n=24)\) while gamete is haploid, \((n=12)\).
JIPMER-2009
Sexual Reproduction in Flowering Plants
262629
Point out the odd one.
1 Nucellus
2 Embryo sac
3 Micropyle
4 Pollen grain
Explanation:
They are all found in ovule (Nucellus, Emryo sac and micropyle) while pollen grain is male gametophyte. The scientific study of living and fossilized pollen grains is known as polynology.
AIPMT-1991
Sexual Reproduction in Flowering Plants
262637
The plant part which consists of two generations, one within the other, is:
1 Germinated pollen grain
2 Embryo
3 Unfertilized ovule
4 Seed
Explanation:
Embryo sac inside the ovule and pollen grains inside the anther refers to the plant parts that consist of two generations one within the other. The zygote develops into an embryo or new saprophyte. The embryo (2n) is surrounded by female gametophyte (n), the latter by seed coat \((2 n)\). In this way seed contains three generations locked one within another of these two generation occurs with in embryo.
262607
In apple the chromosome number of gametes is 17. What is the chromosome number in its Primary Endosperm Nucleus (PEN)?
1 34
2 68
3 17
4 51
Explanation:
Apple is a angiospermic plant. The gametes are haploid. Angiospermic plants are triploid, chromosome number of gametes \(=17\). So the number of chromosomes in the primary endosperm nucleus is \(=51\).
Karnataka CET-2020
Sexual Reproduction in Flowering Plants
262609
If root of a flowering plant has 24 chromosomes, then its gamete has how many chromosomes?
1 24
2 12
3 4
4 8
Explanation:
If root of a flowering plant has 24 chromosomes, then its gamete has 12 chromosomes because the root cell of flowering plant is diploid, \((2 n=24)\) while gamete is haploid, \((n=12)\).
JIPMER-2009
Sexual Reproduction in Flowering Plants
262629
Point out the odd one.
1 Nucellus
2 Embryo sac
3 Micropyle
4 Pollen grain
Explanation:
They are all found in ovule (Nucellus, Emryo sac and micropyle) while pollen grain is male gametophyte. The scientific study of living and fossilized pollen grains is known as polynology.
AIPMT-1991
Sexual Reproduction in Flowering Plants
262637
The plant part which consists of two generations, one within the other, is:
1 Germinated pollen grain
2 Embryo
3 Unfertilized ovule
4 Seed
Explanation:
Embryo sac inside the ovule and pollen grains inside the anther refers to the plant parts that consist of two generations one within the other. The zygote develops into an embryo or new saprophyte. The embryo (2n) is surrounded by female gametophyte (n), the latter by seed coat \((2 n)\). In this way seed contains three generations locked one within another of these two generation occurs with in embryo.
262607
In apple the chromosome number of gametes is 17. What is the chromosome number in its Primary Endosperm Nucleus (PEN)?
1 34
2 68
3 17
4 51
Explanation:
Apple is a angiospermic plant. The gametes are haploid. Angiospermic plants are triploid, chromosome number of gametes \(=17\). So the number of chromosomes in the primary endosperm nucleus is \(=51\).
Karnataka CET-2020
Sexual Reproduction in Flowering Plants
262609
If root of a flowering plant has 24 chromosomes, then its gamete has how many chromosomes?
1 24
2 12
3 4
4 8
Explanation:
If root of a flowering plant has 24 chromosomes, then its gamete has 12 chromosomes because the root cell of flowering plant is diploid, \((2 n=24)\) while gamete is haploid, \((n=12)\).
JIPMER-2009
Sexual Reproduction in Flowering Plants
262629
Point out the odd one.
1 Nucellus
2 Embryo sac
3 Micropyle
4 Pollen grain
Explanation:
They are all found in ovule (Nucellus, Emryo sac and micropyle) while pollen grain is male gametophyte. The scientific study of living and fossilized pollen grains is known as polynology.
AIPMT-1991
Sexual Reproduction in Flowering Plants
262637
The plant part which consists of two generations, one within the other, is:
1 Germinated pollen grain
2 Embryo
3 Unfertilized ovule
4 Seed
Explanation:
Embryo sac inside the ovule and pollen grains inside the anther refers to the plant parts that consist of two generations one within the other. The zygote develops into an embryo or new saprophyte. The embryo (2n) is surrounded by female gametophyte (n), the latter by seed coat \((2 n)\). In this way seed contains three generations locked one within another of these two generation occurs with in embryo.
