NEET Test Series from KOTA - 10 Papers In MS WORD
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Sexual Reproduction in Flowering Plants
262768
Identify the correct statements among the following.
1 A, B, C
2 A, C, D
3 B, C, D
4 A, B, D
Explanation:
The ability of the pistil to recognize pollen by the surface protein on the pollen grain. On landing of pollen on stigma of pistil. The pollen grain protein are interact with stigma protein if protein are compatible then pollen grain will be allowed to germinate, if protein are not compatible the pollen grain rejected. The endosperm filled with reserve food materials that use for developing embryo. The coconut water form by successive nuclear division of primary endosperm nucleus (PEN) and the surrounding white kernel is the cellular endosperm. In dicot embryo have an embryonal axis and two cotyledons the portion of embryonal axis above the level of cotyledon is the epicotyls, which terminates with the plumule or stem tip.
TS EAMCET-09.08.2021 Shift-II
Sexual Reproduction in Flowering Plants
262770
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is :-
1 Pentaploidy
2 Diploidy
3 Triploidy
4 Tetraploidy
Explanation:
Primary endosperm nucleus is formed by the fusion of male gamete with the two polar nuclei. The endosperm is generally triploid as the male gamete is haploid. Here, the male gamete will be diploid becomes the male plant is tetraploid and the two polar nuclei will be haploid because as female plant is diploid so the endosperm will be tetraploid.
AIPMT-2004
Sexual Reproduction in Flowering Plants
262773
Advantage of cleistogamy is :-
1 Vivipary
2 Higher genetic variability
3 More vigorous offspring
4 No dependence on pollinators
Explanation:
Cleistogamous flowers show autogamy as they do not open. Another is present close to the stigma and receive pollen grain as anthers dehisce. Due to autogamy cleistogamous flower do not open on pollinator and produce assured seed-set. Cleistogamous Flowers are the ones that do not open and show self pollination. eg.- In grass family such as peas, peanut and pansy
DUMET-2009
Sexual Reproduction in Flowering Plants
262774
Double fertilization is exhibited by
1 Gymnosperms
2 Algae
3 Fungi
4 Angiosperms
Explanation:
The process of fusion of male gamete with the female to form the diploid zygote is known as fertilization. - The fusion of one male gamete with egg and that of another male gamete with a secondary nucleus is called double fertilization. Double fertilization is a complex and efficient process that found in angiosperm. In this process fusion of two male gametes with two female gametes. First male gamete fuses with egg cell and form a zygote and diploid embryo of the new plant. Second male gamete fuse with the two polar nuclei of the embryo sac to form the triploid endosperm. The endosperm which is a nutrient rich and use to developing embryo.
262768
Identify the correct statements among the following.
1 A, B, C
2 A, C, D
3 B, C, D
4 A, B, D
Explanation:
The ability of the pistil to recognize pollen by the surface protein on the pollen grain. On landing of pollen on stigma of pistil. The pollen grain protein are interact with stigma protein if protein are compatible then pollen grain will be allowed to germinate, if protein are not compatible the pollen grain rejected. The endosperm filled with reserve food materials that use for developing embryo. The coconut water form by successive nuclear division of primary endosperm nucleus (PEN) and the surrounding white kernel is the cellular endosperm. In dicot embryo have an embryonal axis and two cotyledons the portion of embryonal axis above the level of cotyledon is the epicotyls, which terminates with the plumule or stem tip.
TS EAMCET-09.08.2021 Shift-II
Sexual Reproduction in Flowering Plants
262770
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is :-
1 Pentaploidy
2 Diploidy
3 Triploidy
4 Tetraploidy
Explanation:
Primary endosperm nucleus is formed by the fusion of male gamete with the two polar nuclei. The endosperm is generally triploid as the male gamete is haploid. Here, the male gamete will be diploid becomes the male plant is tetraploid and the two polar nuclei will be haploid because as female plant is diploid so the endosperm will be tetraploid.
AIPMT-2004
Sexual Reproduction in Flowering Plants
262773
Advantage of cleistogamy is :-
1 Vivipary
2 Higher genetic variability
3 More vigorous offspring
4 No dependence on pollinators
Explanation:
Cleistogamous flowers show autogamy as they do not open. Another is present close to the stigma and receive pollen grain as anthers dehisce. Due to autogamy cleistogamous flower do not open on pollinator and produce assured seed-set. Cleistogamous Flowers are the ones that do not open and show self pollination. eg.- In grass family such as peas, peanut and pansy
DUMET-2009
Sexual Reproduction in Flowering Plants
262774
Double fertilization is exhibited by
1 Gymnosperms
2 Algae
3 Fungi
4 Angiosperms
Explanation:
The process of fusion of male gamete with the female to form the diploid zygote is known as fertilization. - The fusion of one male gamete with egg and that of another male gamete with a secondary nucleus is called double fertilization. Double fertilization is a complex and efficient process that found in angiosperm. In this process fusion of two male gametes with two female gametes. First male gamete fuses with egg cell and form a zygote and diploid embryo of the new plant. Second male gamete fuse with the two polar nuclei of the embryo sac to form the triploid endosperm. The endosperm which is a nutrient rich and use to developing embryo.
262768
Identify the correct statements among the following.
1 A, B, C
2 A, C, D
3 B, C, D
4 A, B, D
Explanation:
The ability of the pistil to recognize pollen by the surface protein on the pollen grain. On landing of pollen on stigma of pistil. The pollen grain protein are interact with stigma protein if protein are compatible then pollen grain will be allowed to germinate, if protein are not compatible the pollen grain rejected. The endosperm filled with reserve food materials that use for developing embryo. The coconut water form by successive nuclear division of primary endosperm nucleus (PEN) and the surrounding white kernel is the cellular endosperm. In dicot embryo have an embryonal axis and two cotyledons the portion of embryonal axis above the level of cotyledon is the epicotyls, which terminates with the plumule or stem tip.
TS EAMCET-09.08.2021 Shift-II
Sexual Reproduction in Flowering Plants
262770
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is :-
1 Pentaploidy
2 Diploidy
3 Triploidy
4 Tetraploidy
Explanation:
Primary endosperm nucleus is formed by the fusion of male gamete with the two polar nuclei. The endosperm is generally triploid as the male gamete is haploid. Here, the male gamete will be diploid becomes the male plant is tetraploid and the two polar nuclei will be haploid because as female plant is diploid so the endosperm will be tetraploid.
AIPMT-2004
Sexual Reproduction in Flowering Plants
262773
Advantage of cleistogamy is :-
1 Vivipary
2 Higher genetic variability
3 More vigorous offspring
4 No dependence on pollinators
Explanation:
Cleistogamous flowers show autogamy as they do not open. Another is present close to the stigma and receive pollen grain as anthers dehisce. Due to autogamy cleistogamous flower do not open on pollinator and produce assured seed-set. Cleistogamous Flowers are the ones that do not open and show self pollination. eg.- In grass family such as peas, peanut and pansy
DUMET-2009
Sexual Reproduction in Flowering Plants
262774
Double fertilization is exhibited by
1 Gymnosperms
2 Algae
3 Fungi
4 Angiosperms
Explanation:
The process of fusion of male gamete with the female to form the diploid zygote is known as fertilization. - The fusion of one male gamete with egg and that of another male gamete with a secondary nucleus is called double fertilization. Double fertilization is a complex and efficient process that found in angiosperm. In this process fusion of two male gametes with two female gametes. First male gamete fuses with egg cell and form a zygote and diploid embryo of the new plant. Second male gamete fuse with the two polar nuclei of the embryo sac to form the triploid endosperm. The endosperm which is a nutrient rich and use to developing embryo.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Sexual Reproduction in Flowering Plants
262768
Identify the correct statements among the following.
1 A, B, C
2 A, C, D
3 B, C, D
4 A, B, D
Explanation:
The ability of the pistil to recognize pollen by the surface protein on the pollen grain. On landing of pollen on stigma of pistil. The pollen grain protein are interact with stigma protein if protein are compatible then pollen grain will be allowed to germinate, if protein are not compatible the pollen grain rejected. The endosperm filled with reserve food materials that use for developing embryo. The coconut water form by successive nuclear division of primary endosperm nucleus (PEN) and the surrounding white kernel is the cellular endosperm. In dicot embryo have an embryonal axis and two cotyledons the portion of embryonal axis above the level of cotyledon is the epicotyls, which terminates with the plumule or stem tip.
TS EAMCET-09.08.2021 Shift-II
Sexual Reproduction in Flowering Plants
262770
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is :-
1 Pentaploidy
2 Diploidy
3 Triploidy
4 Tetraploidy
Explanation:
Primary endosperm nucleus is formed by the fusion of male gamete with the two polar nuclei. The endosperm is generally triploid as the male gamete is haploid. Here, the male gamete will be diploid becomes the male plant is tetraploid and the two polar nuclei will be haploid because as female plant is diploid so the endosperm will be tetraploid.
AIPMT-2004
Sexual Reproduction in Flowering Plants
262773
Advantage of cleistogamy is :-
1 Vivipary
2 Higher genetic variability
3 More vigorous offspring
4 No dependence on pollinators
Explanation:
Cleistogamous flowers show autogamy as they do not open. Another is present close to the stigma and receive pollen grain as anthers dehisce. Due to autogamy cleistogamous flower do not open on pollinator and produce assured seed-set. Cleistogamous Flowers are the ones that do not open and show self pollination. eg.- In grass family such as peas, peanut and pansy
DUMET-2009
Sexual Reproduction in Flowering Plants
262774
Double fertilization is exhibited by
1 Gymnosperms
2 Algae
3 Fungi
4 Angiosperms
Explanation:
The process of fusion of male gamete with the female to form the diploid zygote is known as fertilization. - The fusion of one male gamete with egg and that of another male gamete with a secondary nucleus is called double fertilization. Double fertilization is a complex and efficient process that found in angiosperm. In this process fusion of two male gametes with two female gametes. First male gamete fuses with egg cell and form a zygote and diploid embryo of the new plant. Second male gamete fuse with the two polar nuclei of the embryo sac to form the triploid endosperm. The endosperm which is a nutrient rich and use to developing embryo.
