NEET Test Series from KOTA - 10 Papers In MS WORD
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Sexual Reproduction in Flowering Plants
262800
Aleuron layer is found in :
1 embryo
2 nuceltus
3 endosperm
4 endodermis
Explanation:
Aleurone layer is found in endosperm. It is a layer of protein. The aleurone layer is located just beneath the outermost layer, the bran, is primarily found in the endosperm of the grain. The aleurone layer consists of cells that contain a rich supply of enzymes and proteins. The cells of aleurone layer are responsible for the synthesis and secretion of a range of hydrolytic enzymes that break down endosperm compounds providing nutrients to the growing cereals embryo.
MGIMS Wardha-2005
Sexual Reproduction in Flowering Plants
262801
A typical dicotyledonous embryo consists of
1 redicle only
2 embryonal axis only
3 cotyledons only
4 All of the above
Explanation:
A typical dicotyledonus embryo consists of the radical, embryonal axis and cotyledons. It contains naturally two cotyledons attached to the embryonal axis. The embryonal axis, also known as the hypocotyls, is the central portion of the embryo located between the radical and the cotyledons, it contains the epicotyl (which becomes the shoot or stem of the plant) and the plumule (the embryonic shoot tip). Cotyledons are the seed leaves of the embryo. Dicotyledonous plants have two cotyledons, which can vary in size and shape among different species. Cotyledons play a crucial role in providing nutrients to the developing seeding until it can produce its own food through photosynthesis.
AMU-2010
Sexual Reproduction in Flowering Plants
262803
If Ca of 2-celled proembryo divides transversely the embryogeny would be
1 Solanad and asterad type
2 Chenopodial and onagrad type
3 Caryophyllad and onagrad type
4 solanad and chenopoldial type
Explanation:
If Ca (apical cell) of 2- celled proembryo divides transversely the embryogeny would be the basal and apical cell both contribute to the development of chenopodial type embryo. When basal cell does not go further division and suspensor derived from apical cell then the embryogeny is caryophyllad type. Ex- Caryophyllaceae. When both apical and basal cell contribute to embryo development, then embryogeny is asterad type. Ex- Asteraceae, Balsaminaceae etc.
1995
Sexual Reproduction in Flowering Plants
262809
What is the number of chromosomes in aleurone layer if \(\mathbf{1 0}\) number of chromosomes are found in megaspore mother cell?
1 5
2 10
3 20
4 15
Explanation:
The chromosome number of megaspore mother cell is 10 . And we know that megaspore mother cell is diploid in nature. So, \(2 \mathrm{n}=10\) and \(\mathrm{n}=5\). Aleurone layer is triploid in nature so, the chromosome number of aleurone layer is \(3 n=15\)
Aleurone layer is found in endosperm. It is a layer of protein. The aleurone layer is located just beneath the outermost layer, the bran, is primarily found in the endosperm of the grain. The aleurone layer consists of cells that contain a rich supply of enzymes and proteins. The cells of aleurone layer are responsible for the synthesis and secretion of a range of hydrolytic enzymes that break down endosperm compounds providing nutrients to the growing cereals embryo.
MGIMS Wardha-2005
Sexual Reproduction in Flowering Plants
262801
A typical dicotyledonous embryo consists of
1 redicle only
2 embryonal axis only
3 cotyledons only
4 All of the above
Explanation:
A typical dicotyledonus embryo consists of the radical, embryonal axis and cotyledons. It contains naturally two cotyledons attached to the embryonal axis. The embryonal axis, also known as the hypocotyls, is the central portion of the embryo located between the radical and the cotyledons, it contains the epicotyl (which becomes the shoot or stem of the plant) and the plumule (the embryonic shoot tip). Cotyledons are the seed leaves of the embryo. Dicotyledonous plants have two cotyledons, which can vary in size and shape among different species. Cotyledons play a crucial role in providing nutrients to the developing seeding until it can produce its own food through photosynthesis.
AMU-2010
Sexual Reproduction in Flowering Plants
262803
If Ca of 2-celled proembryo divides transversely the embryogeny would be
1 Solanad and asterad type
2 Chenopodial and onagrad type
3 Caryophyllad and onagrad type
4 solanad and chenopoldial type
Explanation:
If Ca (apical cell) of 2- celled proembryo divides transversely the embryogeny would be the basal and apical cell both contribute to the development of chenopodial type embryo. When basal cell does not go further division and suspensor derived from apical cell then the embryogeny is caryophyllad type. Ex- Caryophyllaceae. When both apical and basal cell contribute to embryo development, then embryogeny is asterad type. Ex- Asteraceae, Balsaminaceae etc.
1995
Sexual Reproduction in Flowering Plants
262809
What is the number of chromosomes in aleurone layer if \(\mathbf{1 0}\) number of chromosomes are found in megaspore mother cell?
1 5
2 10
3 20
4 15
Explanation:
The chromosome number of megaspore mother cell is 10 . And we know that megaspore mother cell is diploid in nature. So, \(2 \mathrm{n}=10\) and \(\mathrm{n}=5\). Aleurone layer is triploid in nature so, the chromosome number of aleurone layer is \(3 n=15\)
Aleurone layer is found in endosperm. It is a layer of protein. The aleurone layer is located just beneath the outermost layer, the bran, is primarily found in the endosperm of the grain. The aleurone layer consists of cells that contain a rich supply of enzymes and proteins. The cells of aleurone layer are responsible for the synthesis and secretion of a range of hydrolytic enzymes that break down endosperm compounds providing nutrients to the growing cereals embryo.
MGIMS Wardha-2005
Sexual Reproduction in Flowering Plants
262801
A typical dicotyledonous embryo consists of
1 redicle only
2 embryonal axis only
3 cotyledons only
4 All of the above
Explanation:
A typical dicotyledonus embryo consists of the radical, embryonal axis and cotyledons. It contains naturally two cotyledons attached to the embryonal axis. The embryonal axis, also known as the hypocotyls, is the central portion of the embryo located between the radical and the cotyledons, it contains the epicotyl (which becomes the shoot or stem of the plant) and the plumule (the embryonic shoot tip). Cotyledons are the seed leaves of the embryo. Dicotyledonous plants have two cotyledons, which can vary in size and shape among different species. Cotyledons play a crucial role in providing nutrients to the developing seeding until it can produce its own food through photosynthesis.
AMU-2010
Sexual Reproduction in Flowering Plants
262803
If Ca of 2-celled proembryo divides transversely the embryogeny would be
1 Solanad and asterad type
2 Chenopodial and onagrad type
3 Caryophyllad and onagrad type
4 solanad and chenopoldial type
Explanation:
If Ca (apical cell) of 2- celled proembryo divides transversely the embryogeny would be the basal and apical cell both contribute to the development of chenopodial type embryo. When basal cell does not go further division and suspensor derived from apical cell then the embryogeny is caryophyllad type. Ex- Caryophyllaceae. When both apical and basal cell contribute to embryo development, then embryogeny is asterad type. Ex- Asteraceae, Balsaminaceae etc.
1995
Sexual Reproduction in Flowering Plants
262809
What is the number of chromosomes in aleurone layer if \(\mathbf{1 0}\) number of chromosomes are found in megaspore mother cell?
1 5
2 10
3 20
4 15
Explanation:
The chromosome number of megaspore mother cell is 10 . And we know that megaspore mother cell is diploid in nature. So, \(2 \mathrm{n}=10\) and \(\mathrm{n}=5\). Aleurone layer is triploid in nature so, the chromosome number of aleurone layer is \(3 n=15\)
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Sexual Reproduction in Flowering Plants
262800
Aleuron layer is found in :
1 embryo
2 nuceltus
3 endosperm
4 endodermis
Explanation:
Aleurone layer is found in endosperm. It is a layer of protein. The aleurone layer is located just beneath the outermost layer, the bran, is primarily found in the endosperm of the grain. The aleurone layer consists of cells that contain a rich supply of enzymes and proteins. The cells of aleurone layer are responsible for the synthesis and secretion of a range of hydrolytic enzymes that break down endosperm compounds providing nutrients to the growing cereals embryo.
MGIMS Wardha-2005
Sexual Reproduction in Flowering Plants
262801
A typical dicotyledonous embryo consists of
1 redicle only
2 embryonal axis only
3 cotyledons only
4 All of the above
Explanation:
A typical dicotyledonus embryo consists of the radical, embryonal axis and cotyledons. It contains naturally two cotyledons attached to the embryonal axis. The embryonal axis, also known as the hypocotyls, is the central portion of the embryo located between the radical and the cotyledons, it contains the epicotyl (which becomes the shoot or stem of the plant) and the plumule (the embryonic shoot tip). Cotyledons are the seed leaves of the embryo. Dicotyledonous plants have two cotyledons, which can vary in size and shape among different species. Cotyledons play a crucial role in providing nutrients to the developing seeding until it can produce its own food through photosynthesis.
AMU-2010
Sexual Reproduction in Flowering Plants
262803
If Ca of 2-celled proembryo divides transversely the embryogeny would be
1 Solanad and asterad type
2 Chenopodial and onagrad type
3 Caryophyllad and onagrad type
4 solanad and chenopoldial type
Explanation:
If Ca (apical cell) of 2- celled proembryo divides transversely the embryogeny would be the basal and apical cell both contribute to the development of chenopodial type embryo. When basal cell does not go further division and suspensor derived from apical cell then the embryogeny is caryophyllad type. Ex- Caryophyllaceae. When both apical and basal cell contribute to embryo development, then embryogeny is asterad type. Ex- Asteraceae, Balsaminaceae etc.
1995
Sexual Reproduction in Flowering Plants
262809
What is the number of chromosomes in aleurone layer if \(\mathbf{1 0}\) number of chromosomes are found in megaspore mother cell?
1 5
2 10
3 20
4 15
Explanation:
The chromosome number of megaspore mother cell is 10 . And we know that megaspore mother cell is diploid in nature. So, \(2 \mathrm{n}=10\) and \(\mathrm{n}=5\). Aleurone layer is triploid in nature so, the chromosome number of aleurone layer is \(3 n=15\)