Formation of microspores (N) from (2N) microspore mothercell through meiosis is called as microsporogenesis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341967
What does the following diagram represent.
1 Female gametophyte
2 Male gametophyte
3 Egg
4 Microspore mother cell
Explanation:
Fig. 2.4 from NCERT
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341968
Pollen grains are produced inside the
1 Pistil
2 Stamen
3 Pollen sacs
4 Filament
Explanation:
In angiosperms, pollen grain is the male gametophyte. And microsporangium is the bilobed pollen sac structures. Inside which, microspore develop and mature into the pollen grains are.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341969
Identify the two cell stage of the pollen grain of the following
1 A
2 B
3 C
4 D
Explanation:
Fig 2.5 from NCERT.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341970
Which of the following statement(s) is/are correct about Parthenium (carrot grass)?
1 Parthenium came into India as a contaminant with imported wheat
2 It has became ubiquitous in occurrence
3 It causes pollen allergy
4 All of the above
Explanation:
Parthenium or carrot grass that came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy.
Formation of microspores (N) from (2N) microspore mothercell through meiosis is called as microsporogenesis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341967
What does the following diagram represent.
1 Female gametophyte
2 Male gametophyte
3 Egg
4 Microspore mother cell
Explanation:
Fig. 2.4 from NCERT
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341968
Pollen grains are produced inside the
1 Pistil
2 Stamen
3 Pollen sacs
4 Filament
Explanation:
In angiosperms, pollen grain is the male gametophyte. And microsporangium is the bilobed pollen sac structures. Inside which, microspore develop and mature into the pollen grains are.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341969
Identify the two cell stage of the pollen grain of the following
1 A
2 B
3 C
4 D
Explanation:
Fig 2.5 from NCERT.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341970
Which of the following statement(s) is/are correct about Parthenium (carrot grass)?
1 Parthenium came into India as a contaminant with imported wheat
2 It has became ubiquitous in occurrence
3 It causes pollen allergy
4 All of the above
Explanation:
Parthenium or carrot grass that came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy.
Formation of microspores (N) from (2N) microspore mothercell through meiosis is called as microsporogenesis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341967
What does the following diagram represent.
1 Female gametophyte
2 Male gametophyte
3 Egg
4 Microspore mother cell
Explanation:
Fig. 2.4 from NCERT
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341968
Pollen grains are produced inside the
1 Pistil
2 Stamen
3 Pollen sacs
4 Filament
Explanation:
In angiosperms, pollen grain is the male gametophyte. And microsporangium is the bilobed pollen sac structures. Inside which, microspore develop and mature into the pollen grains are.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341969
Identify the two cell stage of the pollen grain of the following
1 A
2 B
3 C
4 D
Explanation:
Fig 2.5 from NCERT.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341970
Which of the following statement(s) is/are correct about Parthenium (carrot grass)?
1 Parthenium came into India as a contaminant with imported wheat
2 It has became ubiquitous in occurrence
3 It causes pollen allergy
4 All of the above
Explanation:
Parthenium or carrot grass that came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy.
Formation of microspores (N) from (2N) microspore mothercell through meiosis is called as microsporogenesis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341967
What does the following diagram represent.
1 Female gametophyte
2 Male gametophyte
3 Egg
4 Microspore mother cell
Explanation:
Fig. 2.4 from NCERT
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341968
Pollen grains are produced inside the
1 Pistil
2 Stamen
3 Pollen sacs
4 Filament
Explanation:
In angiosperms, pollen grain is the male gametophyte. And microsporangium is the bilobed pollen sac structures. Inside which, microspore develop and mature into the pollen grains are.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341969
Identify the two cell stage of the pollen grain of the following
1 A
2 B
3 C
4 D
Explanation:
Fig 2.5 from NCERT.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341970
Which of the following statement(s) is/are correct about Parthenium (carrot grass)?
1 Parthenium came into India as a contaminant with imported wheat
2 It has became ubiquitous in occurrence
3 It causes pollen allergy
4 All of the above
Explanation:
Parthenium or carrot grass that came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy.
Formation of microspores (N) from (2N) microspore mothercell through meiosis is called as microsporogenesis.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341967
What does the following diagram represent.
1 Female gametophyte
2 Male gametophyte
3 Egg
4 Microspore mother cell
Explanation:
Fig. 2.4 from NCERT
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341968
Pollen grains are produced inside the
1 Pistil
2 Stamen
3 Pollen sacs
4 Filament
Explanation:
In angiosperms, pollen grain is the male gametophyte. And microsporangium is the bilobed pollen sac structures. Inside which, microspore develop and mature into the pollen grains are.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341969
Identify the two cell stage of the pollen grain of the following
1 A
2 B
3 C
4 D
Explanation:
Fig 2.5 from NCERT.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS
341970
Which of the following statement(s) is/are correct about Parthenium (carrot grass)?
1 Parthenium came into India as a contaminant with imported wheat
2 It has became ubiquitous in occurrence
3 It causes pollen allergy
4 All of the above
Explanation:
Parthenium or carrot grass that came into India as a contaminant with imported wheat, has become ubiquitous in occurrence and causes pollen allergy.