267371
In the flowering plants, the pollen grains and ovules are developed in specialised structures called
1 Flowers
2 Leaf
3 Root
4 Bud
Explanation:
(a)
NCERT Page-40 / N-34
Plant kingdom
259635
Endosperm in angiosperms is:
1 Tetraploid structure
2 Triploid structure
3 Haploid
4 none of the above
Explanation:
Endosperm is a triploid (3n) structure found in many seeds of angiosperm. It frequently stores food material which are broken down during germination. In angiosperm, the endosperm is the main nutritive tissue for embryo out of which two male gametes one fertilizes egg to form zygote and other fuses with secondary nuclei to form triploid endosperm. Hence, triploid nature of endosperm is the characteristic feature of angiosperm. Double fertilization and triple fusion
AIIMS-2013 / J and K CET-2012
Plant kingdom
259637
Double fertilization was discovered by:
1 Nawaschin
2 Strasburger
3 Emerson
4 None of these
Explanation:
Double fertilization was discovered by Nawaschin and Guignard. Double fertilization is the characteristic of angiosperms. In this process, one male gamete fuses with the egg to form a zygote. - Nawaschin discovered double fertilization in 1898 , in the liliaceous plants.
Haryana PMT-2005 / BHU PMT-2003
Plant kingdom
259642
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:
1 haploid
2 triploid
3 tetraploid
4 pentaploid
Explanation:
When a diploid female plant is crossed with a tetraploid male. The ploidy of endosperm cells in the resulting seed is pentaploid. The endosperm is formed by fusion male gamete with two polar nuclei, i.e. fusion of two diploid polar nuclei and haploid male gamete will give pentaploid (5n). The primary endosperm nucleus and eventually pentaploid endosperm. Male gamete +2 polor nuclei Endosperm
HP CET-2013 / Uttarakhand PMT-2008 BHU PMT-2004 / VMMC-2003
267371
In the flowering plants, the pollen grains and ovules are developed in specialised structures called
1 Flowers
2 Leaf
3 Root
4 Bud
Explanation:
(a)
NCERT Page-40 / N-34
Plant kingdom
259635
Endosperm in angiosperms is:
1 Tetraploid structure
2 Triploid structure
3 Haploid
4 none of the above
Explanation:
Endosperm is a triploid (3n) structure found in many seeds of angiosperm. It frequently stores food material which are broken down during germination. In angiosperm, the endosperm is the main nutritive tissue for embryo out of which two male gametes one fertilizes egg to form zygote and other fuses with secondary nuclei to form triploid endosperm. Hence, triploid nature of endosperm is the characteristic feature of angiosperm. Double fertilization and triple fusion
AIIMS-2013 / J and K CET-2012
Plant kingdom
259637
Double fertilization was discovered by:
1 Nawaschin
2 Strasburger
3 Emerson
4 None of these
Explanation:
Double fertilization was discovered by Nawaschin and Guignard. Double fertilization is the characteristic of angiosperms. In this process, one male gamete fuses with the egg to form a zygote. - Nawaschin discovered double fertilization in 1898 , in the liliaceous plants.
Haryana PMT-2005 / BHU PMT-2003
Plant kingdom
259642
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:
1 haploid
2 triploid
3 tetraploid
4 pentaploid
Explanation:
When a diploid female plant is crossed with a tetraploid male. The ploidy of endosperm cells in the resulting seed is pentaploid. The endosperm is formed by fusion male gamete with two polar nuclei, i.e. fusion of two diploid polar nuclei and haploid male gamete will give pentaploid (5n). The primary endosperm nucleus and eventually pentaploid endosperm. Male gamete +2 polor nuclei Endosperm
HP CET-2013 / Uttarakhand PMT-2008 BHU PMT-2004 / VMMC-2003
267371
In the flowering plants, the pollen grains and ovules are developed in specialised structures called
1 Flowers
2 Leaf
3 Root
4 Bud
Explanation:
(a)
NCERT Page-40 / N-34
Plant kingdom
259635
Endosperm in angiosperms is:
1 Tetraploid structure
2 Triploid structure
3 Haploid
4 none of the above
Explanation:
Endosperm is a triploid (3n) structure found in many seeds of angiosperm. It frequently stores food material which are broken down during germination. In angiosperm, the endosperm is the main nutritive tissue for embryo out of which two male gametes one fertilizes egg to form zygote and other fuses with secondary nuclei to form triploid endosperm. Hence, triploid nature of endosperm is the characteristic feature of angiosperm. Double fertilization and triple fusion
AIIMS-2013 / J and K CET-2012
Plant kingdom
259637
Double fertilization was discovered by:
1 Nawaschin
2 Strasburger
3 Emerson
4 None of these
Explanation:
Double fertilization was discovered by Nawaschin and Guignard. Double fertilization is the characteristic of angiosperms. In this process, one male gamete fuses with the egg to form a zygote. - Nawaschin discovered double fertilization in 1898 , in the liliaceous plants.
Haryana PMT-2005 / BHU PMT-2003
Plant kingdom
259642
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:
1 haploid
2 triploid
3 tetraploid
4 pentaploid
Explanation:
When a diploid female plant is crossed with a tetraploid male. The ploidy of endosperm cells in the resulting seed is pentaploid. The endosperm is formed by fusion male gamete with two polar nuclei, i.e. fusion of two diploid polar nuclei and haploid male gamete will give pentaploid (5n). The primary endosperm nucleus and eventually pentaploid endosperm. Male gamete +2 polor nuclei Endosperm
HP CET-2013 / Uttarakhand PMT-2008 BHU PMT-2004 / VMMC-2003
267371
In the flowering plants, the pollen grains and ovules are developed in specialised structures called
1 Flowers
2 Leaf
3 Root
4 Bud
Explanation:
(a)
NCERT Page-40 / N-34
Plant kingdom
259635
Endosperm in angiosperms is:
1 Tetraploid structure
2 Triploid structure
3 Haploid
4 none of the above
Explanation:
Endosperm is a triploid (3n) structure found in many seeds of angiosperm. It frequently stores food material which are broken down during germination. In angiosperm, the endosperm is the main nutritive tissue for embryo out of which two male gametes one fertilizes egg to form zygote and other fuses with secondary nuclei to form triploid endosperm. Hence, triploid nature of endosperm is the characteristic feature of angiosperm. Double fertilization and triple fusion
AIIMS-2013 / J and K CET-2012
Plant kingdom
259637
Double fertilization was discovered by:
1 Nawaschin
2 Strasburger
3 Emerson
4 None of these
Explanation:
Double fertilization was discovered by Nawaschin and Guignard. Double fertilization is the characteristic of angiosperms. In this process, one male gamete fuses with the egg to form a zygote. - Nawaschin discovered double fertilization in 1898 , in the liliaceous plants.
Haryana PMT-2005 / BHU PMT-2003
Plant kingdom
259642
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:
1 haploid
2 triploid
3 tetraploid
4 pentaploid
Explanation:
When a diploid female plant is crossed with a tetraploid male. The ploidy of endosperm cells in the resulting seed is pentaploid. The endosperm is formed by fusion male gamete with two polar nuclei, i.e. fusion of two diploid polar nuclei and haploid male gamete will give pentaploid (5n). The primary endosperm nucleus and eventually pentaploid endosperm. Male gamete +2 polor nuclei Endosperm
HP CET-2013 / Uttarakhand PMT-2008 BHU PMT-2004 / VMMC-2003
