NEET Test Series from KOTA - 10 Papers In MS WORD
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Sexual Reproduction in Flowering Plants
262805
By double fertilization, is formed
1 endosperm
2 megaspore
3 seed
4 fruit
Explanation:
In double fertilization, two steps are involved. In first step, one male gamete fuses with one egg cell and form zygote, and in the second step, another male gamete fuses with polar nuclei or secondary nucleus and form endosperm. The first step is known as fertilization and second step is known as triple fusion. and after fertilization, ovary convert into fruit and ovule convert into seed.
CG PMT-2007 / Rajasthan PMT-2006
Sexual Reproduction in Flowering Plants
262806
A hyaline bisexual and self-fertilized flower that does not open at all is
1 chasmogamaus
2 apogamous
3 cleistogamous
4 polygamous
Explanation:
A hyaline bisexual and self-fertilized flower that does not open at all is called cleistogamous. In such flowes, the anthers and stigma lie close to each other. Ex- Arachis hypogaea. Chasmogamous flower expose their mature stigma and anthers to the pollinating agents.
Haryana PMT-2009 / CG PMT-2009
Sexual Reproduction in Flowering Plants
262807
Germination of pollen grain on the stigma is
1 in situ germination
2 in vitro germination
3 in vivo germination
4 autogamy
Explanation:
Germination of pollen grain on the stigma is in-vivo germination because the processes that occur inside the body of a living organism are termed as 'in vivo' i.e. in natural condition. The processes that occur outside the body of a living organism are termed as 'in vitro' i.e. in artificial condition. Autogamy is a process of self-fertilization in plants.
VMMC-2015
Sexual Reproduction in Flowering Plants
262808
The fertilization in which male gametes are carried through pollen tube is known as:
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. When pollen tube enters into ovule through micropyle the process is called progamy. When pollen tube enters into ovule through chalaza the process is called chalazogamy. Synogamy is the fusion of gametes resulting in the formation of zygote.
In double fertilization, two steps are involved. In first step, one male gamete fuses with one egg cell and form zygote, and in the second step, another male gamete fuses with polar nuclei or secondary nucleus and form endosperm. The first step is known as fertilization and second step is known as triple fusion. and after fertilization, ovary convert into fruit and ovule convert into seed.
CG PMT-2007 / Rajasthan PMT-2006
Sexual Reproduction in Flowering Plants
262806
A hyaline bisexual and self-fertilized flower that does not open at all is
1 chasmogamaus
2 apogamous
3 cleistogamous
4 polygamous
Explanation:
A hyaline bisexual and self-fertilized flower that does not open at all is called cleistogamous. In such flowes, the anthers and stigma lie close to each other. Ex- Arachis hypogaea. Chasmogamous flower expose their mature stigma and anthers to the pollinating agents.
Haryana PMT-2009 / CG PMT-2009
Sexual Reproduction in Flowering Plants
262807
Germination of pollen grain on the stigma is
1 in situ germination
2 in vitro germination
3 in vivo germination
4 autogamy
Explanation:
Germination of pollen grain on the stigma is in-vivo germination because the processes that occur inside the body of a living organism are termed as 'in vivo' i.e. in natural condition. The processes that occur outside the body of a living organism are termed as 'in vitro' i.e. in artificial condition. Autogamy is a process of self-fertilization in plants.
VMMC-2015
Sexual Reproduction in Flowering Plants
262808
The fertilization in which male gametes are carried through pollen tube is known as:
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. When pollen tube enters into ovule through micropyle the process is called progamy. When pollen tube enters into ovule through chalaza the process is called chalazogamy. Synogamy is the fusion of gametes resulting in the formation of zygote.
In double fertilization, two steps are involved. In first step, one male gamete fuses with one egg cell and form zygote, and in the second step, another male gamete fuses with polar nuclei or secondary nucleus and form endosperm. The first step is known as fertilization and second step is known as triple fusion. and after fertilization, ovary convert into fruit and ovule convert into seed.
CG PMT-2007 / Rajasthan PMT-2006
Sexual Reproduction in Flowering Plants
262806
A hyaline bisexual and self-fertilized flower that does not open at all is
1 chasmogamaus
2 apogamous
3 cleistogamous
4 polygamous
Explanation:
A hyaline bisexual and self-fertilized flower that does not open at all is called cleistogamous. In such flowes, the anthers and stigma lie close to each other. Ex- Arachis hypogaea. Chasmogamous flower expose their mature stigma and anthers to the pollinating agents.
Haryana PMT-2009 / CG PMT-2009
Sexual Reproduction in Flowering Plants
262807
Germination of pollen grain on the stigma is
1 in situ germination
2 in vitro germination
3 in vivo germination
4 autogamy
Explanation:
Germination of pollen grain on the stigma is in-vivo germination because the processes that occur inside the body of a living organism are termed as 'in vivo' i.e. in natural condition. The processes that occur outside the body of a living organism are termed as 'in vitro' i.e. in artificial condition. Autogamy is a process of self-fertilization in plants.
VMMC-2015
Sexual Reproduction in Flowering Plants
262808
The fertilization in which male gametes are carried through pollen tube is known as:
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. When pollen tube enters into ovule through micropyle the process is called progamy. When pollen tube enters into ovule through chalaza the process is called chalazogamy. Synogamy is the fusion of gametes resulting in the formation of zygote.
In double fertilization, two steps are involved. In first step, one male gamete fuses with one egg cell and form zygote, and in the second step, another male gamete fuses with polar nuclei or secondary nucleus and form endosperm. The first step is known as fertilization and second step is known as triple fusion. and after fertilization, ovary convert into fruit and ovule convert into seed.
CG PMT-2007 / Rajasthan PMT-2006
Sexual Reproduction in Flowering Plants
262806
A hyaline bisexual and self-fertilized flower that does not open at all is
1 chasmogamaus
2 apogamous
3 cleistogamous
4 polygamous
Explanation:
A hyaline bisexual and self-fertilized flower that does not open at all is called cleistogamous. In such flowes, the anthers and stigma lie close to each other. Ex- Arachis hypogaea. Chasmogamous flower expose their mature stigma and anthers to the pollinating agents.
Haryana PMT-2009 / CG PMT-2009
Sexual Reproduction in Flowering Plants
262807
Germination of pollen grain on the stigma is
1 in situ germination
2 in vitro germination
3 in vivo germination
4 autogamy
Explanation:
Germination of pollen grain on the stigma is in-vivo germination because the processes that occur inside the body of a living organism are termed as 'in vivo' i.e. in natural condition. The processes that occur outside the body of a living organism are termed as 'in vitro' i.e. in artificial condition. Autogamy is a process of self-fertilization in plants.
VMMC-2015
Sexual Reproduction in Flowering Plants
262808
The fertilization in which male gametes are carried through pollen tube is known as:
1 syngamy
2 porogamy
3 siphonogamy
4 chalazogamy
Explanation:
The fertilization in which male gametes are carried through pollen tube is known as siphonogamy. When pollen tube enters into ovule through micropyle the process is called progamy. When pollen tube enters into ovule through chalaza the process is called chalazogamy. Synogamy is the fusion of gametes resulting in the formation of zygote.
