341996
Pollen grains are rich in nutrients. It has become a fashion in recent years to
1 Consumed in the form of tablets and syrups
2 Pollen consumption has been claimed to increase the performance of athletes and race horses
3 use pollen tablets as food supplements.
4 All of these
Explanation:
Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements. In western countries, a large number of pollen products in the form of tablets and syrups are available in the market. Pollen consumption has been claimed to increase the performance of athletes and race horses.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341997
Pollens are stored in
1 Nitrogen\(\left( { - {{186}^o}C} \right)\)
2 Nitrogen\(\left( { - {{196}^o}C} \right)\)
3 Nitrogen \(\left( { + {{186}^o}C} \right)\)
4 Nitrogen\(\left( { + {{196}^o}C} \right)\)
Explanation:
It is possible to store pollen grains of a large number of species for years in liquid nitrogen\(\left( { - {{196}^o}C} \right)\).Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341998
Pollen grains of different species show characteristic difference in ___
1 Shapes, size and colours only
2 Shapes, sizes, colours and ploidy only
3 Shapes, sizes, colour and design only
4 Ploidy only
Explanation:
Pollen grains of different species show characteristic difference in shapes, sizes, colour and design only.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341999
Which of the following statements is wrong?
1 Pollen grains remain viable for several months because their outer covering is made of sporopollenin
2 No enzyme can degrade sporopollenin
3 Pollen grains are well represented in fossil strata due to sporopollenin
4 Pollen wall has cavities containing proteins
Explanation:
When once they are shed, pollen grains have to land on the stigma before they lose viability if they have to bring about fertilisation.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
342000
Another name for Pollen sac is
1 Embryo sac
2 Anther
3 Microsporangium
4 Megasporangium
Explanation:
Pollen sacs are also called the microsporangia Anther consists of four microsporangia..
341996
Pollen grains are rich in nutrients. It has become a fashion in recent years to
1 Consumed in the form of tablets and syrups
2 Pollen consumption has been claimed to increase the performance of athletes and race horses
3 use pollen tablets as food supplements.
4 All of these
Explanation:
Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements. In western countries, a large number of pollen products in the form of tablets and syrups are available in the market. Pollen consumption has been claimed to increase the performance of athletes and race horses.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341997
Pollens are stored in
1 Nitrogen\(\left( { - {{186}^o}C} \right)\)
2 Nitrogen\(\left( { - {{196}^o}C} \right)\)
3 Nitrogen \(\left( { + {{186}^o}C} \right)\)
4 Nitrogen\(\left( { + {{196}^o}C} \right)\)
Explanation:
It is possible to store pollen grains of a large number of species for years in liquid nitrogen\(\left( { - {{196}^o}C} \right)\).Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341998
Pollen grains of different species show characteristic difference in ___
1 Shapes, size and colours only
2 Shapes, sizes, colours and ploidy only
3 Shapes, sizes, colour and design only
4 Ploidy only
Explanation:
Pollen grains of different species show characteristic difference in shapes, sizes, colour and design only.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341999
Which of the following statements is wrong?
1 Pollen grains remain viable for several months because their outer covering is made of sporopollenin
2 No enzyme can degrade sporopollenin
3 Pollen grains are well represented in fossil strata due to sporopollenin
4 Pollen wall has cavities containing proteins
Explanation:
When once they are shed, pollen grains have to land on the stigma before they lose viability if they have to bring about fertilisation.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
342000
Another name for Pollen sac is
1 Embryo sac
2 Anther
3 Microsporangium
4 Megasporangium
Explanation:
Pollen sacs are also called the microsporangia Anther consists of four microsporangia..
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341996
Pollen grains are rich in nutrients. It has become a fashion in recent years to
1 Consumed in the form of tablets and syrups
2 Pollen consumption has been claimed to increase the performance of athletes and race horses
3 use pollen tablets as food supplements.
4 All of these
Explanation:
Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements. In western countries, a large number of pollen products in the form of tablets and syrups are available in the market. Pollen consumption has been claimed to increase the performance of athletes and race horses.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341997
Pollens are stored in
1 Nitrogen\(\left( { - {{186}^o}C} \right)\)
2 Nitrogen\(\left( { - {{196}^o}C} \right)\)
3 Nitrogen \(\left( { + {{186}^o}C} \right)\)
4 Nitrogen\(\left( { + {{196}^o}C} \right)\)
Explanation:
It is possible to store pollen grains of a large number of species for years in liquid nitrogen\(\left( { - {{196}^o}C} \right)\).Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341998
Pollen grains of different species show characteristic difference in ___
1 Shapes, size and colours only
2 Shapes, sizes, colours and ploidy only
3 Shapes, sizes, colour and design only
4 Ploidy only
Explanation:
Pollen grains of different species show characteristic difference in shapes, sizes, colour and design only.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341999
Which of the following statements is wrong?
1 Pollen grains remain viable for several months because their outer covering is made of sporopollenin
2 No enzyme can degrade sporopollenin
3 Pollen grains are well represented in fossil strata due to sporopollenin
4 Pollen wall has cavities containing proteins
Explanation:
When once they are shed, pollen grains have to land on the stigma before they lose viability if they have to bring about fertilisation.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
342000
Another name for Pollen sac is
1 Embryo sac
2 Anther
3 Microsporangium
4 Megasporangium
Explanation:
Pollen sacs are also called the microsporangia Anther consists of four microsporangia..
341996
Pollen grains are rich in nutrients. It has become a fashion in recent years to
1 Consumed in the form of tablets and syrups
2 Pollen consumption has been claimed to increase the performance of athletes and race horses
3 use pollen tablets as food supplements.
4 All of these
Explanation:
Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements. In western countries, a large number of pollen products in the form of tablets and syrups are available in the market. Pollen consumption has been claimed to increase the performance of athletes and race horses.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341997
Pollens are stored in
1 Nitrogen\(\left( { - {{186}^o}C} \right)\)
2 Nitrogen\(\left( { - {{196}^o}C} \right)\)
3 Nitrogen \(\left( { + {{186}^o}C} \right)\)
4 Nitrogen\(\left( { + {{196}^o}C} \right)\)
Explanation:
It is possible to store pollen grains of a large number of species for years in liquid nitrogen\(\left( { - {{196}^o}C} \right)\).Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341998
Pollen grains of different species show characteristic difference in ___
1 Shapes, size and colours only
2 Shapes, sizes, colours and ploidy only
3 Shapes, sizes, colour and design only
4 Ploidy only
Explanation:
Pollen grains of different species show characteristic difference in shapes, sizes, colour and design only.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341999
Which of the following statements is wrong?
1 Pollen grains remain viable for several months because their outer covering is made of sporopollenin
2 No enzyme can degrade sporopollenin
3 Pollen grains are well represented in fossil strata due to sporopollenin
4 Pollen wall has cavities containing proteins
Explanation:
When once they are shed, pollen grains have to land on the stigma before they lose viability if they have to bring about fertilisation.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
342000
Another name for Pollen sac is
1 Embryo sac
2 Anther
3 Microsporangium
4 Megasporangium
Explanation:
Pollen sacs are also called the microsporangia Anther consists of four microsporangia..
341996
Pollen grains are rich in nutrients. It has become a fashion in recent years to
1 Consumed in the form of tablets and syrups
2 Pollen consumption has been claimed to increase the performance of athletes and race horses
3 use pollen tablets as food supplements.
4 All of these
Explanation:
Pollen grains are rich in nutrients. It has become a fashion in recent years to use pollen tablets as food supplements. In western countries, a large number of pollen products in the form of tablets and syrups are available in the market. Pollen consumption has been claimed to increase the performance of athletes and race horses.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341997
Pollens are stored in
1 Nitrogen\(\left( { - {{186}^o}C} \right)\)
2 Nitrogen\(\left( { - {{196}^o}C} \right)\)
3 Nitrogen \(\left( { + {{186}^o}C} \right)\)
4 Nitrogen\(\left( { + {{196}^o}C} \right)\)
Explanation:
It is possible to store pollen grains of a large number of species for years in liquid nitrogen\(\left( { - {{196}^o}C} \right)\).Such stored pollen can be used as pollen banks, similar to seed banks, in crop breeding programmes.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341998
Pollen grains of different species show characteristic difference in ___
1 Shapes, size and colours only
2 Shapes, sizes, colours and ploidy only
3 Shapes, sizes, colour and design only
4 Ploidy only
Explanation:
Pollen grains of different species show characteristic difference in shapes, sizes, colour and design only.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341999
Which of the following statements is wrong?
1 Pollen grains remain viable for several months because their outer covering is made of sporopollenin
2 No enzyme can degrade sporopollenin
3 Pollen grains are well represented in fossil strata due to sporopollenin
4 Pollen wall has cavities containing proteins
Explanation:
When once they are shed, pollen grains have to land on the stigma before they lose viability if they have to bring about fertilisation.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
342000
Another name for Pollen sac is
1 Embryo sac
2 Anther
3 Microsporangium
4 Megasporangium
Explanation:
Pollen sacs are also called the microsporangia Anther consists of four microsporangia..