Post-Fertilisation: Structure and Events
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341992 Among the following statements related to pollens, choose the correct one.
Statement A :
In \(40 \%\) of angiosperms pollen grains are shed at 3-celled stage.
Statement B :
Intine is made of cellulose and pectin and it is discontinuous with germ pores.

1 Both statements A and B are correct.
2 Both statements A and B are incorrect.
3 Statement A is correct and Statement B is incorrect.
4 Statement A is incorrect and Statement B is correct.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341993 Exine of pollen is
A. Hard outer layer of pollen grain
B. Most resistant organic matter known as layer which can withstand high temperature, strong acids and alkali.
C. Layer made up of sporopollenin.
D. Layer which cannot be degraded by any known enzyme.
Which one of the following is correct?

1 A and B
2 A, B, C
3 A, B, C, D
4 A and C
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341994 Pollen grains are shed in 2 celled stage in

1 \( > 70\% \) Angiosperm plant
2 \( < 50\% \)Angiosperm plant
3 \( > 60\% \)Angiosperm plant
4 \( < 40\% \)Angiosperm plant
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341995 Assertion :
Pollen grain of angiosperm is
considered as a male gametophyte.
Reason :
Pollen grain contains stigma,
style and ovary.

1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341992 Among the following statements related to pollens, choose the correct one.
Statement A :
In \(40 \%\) of angiosperms pollen grains are shed at 3-celled stage.
Statement B :
Intine is made of cellulose and pectin and it is discontinuous with germ pores.

1 Both statements A and B are correct.
2 Both statements A and B are incorrect.
3 Statement A is correct and Statement B is incorrect.
4 Statement A is incorrect and Statement B is correct.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341993 Exine of pollen is
A. Hard outer layer of pollen grain
B. Most resistant organic matter known as layer which can withstand high temperature, strong acids and alkali.
C. Layer made up of sporopollenin.
D. Layer which cannot be degraded by any known enzyme.
Which one of the following is correct?

1 A and B
2 A, B, C
3 A, B, C, D
4 A and C
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341994 Pollen grains are shed in 2 celled stage in

1 \( > 70\% \) Angiosperm plant
2 \( < 50\% \)Angiosperm plant
3 \( > 60\% \)Angiosperm plant
4 \( < 40\% \)Angiosperm plant
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341995 Assertion :
Pollen grain of angiosperm is
considered as a male gametophyte.
Reason :
Pollen grain contains stigma,
style and ovary.

1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341992 Among the following statements related to pollens, choose the correct one.
Statement A :
In \(40 \%\) of angiosperms pollen grains are shed at 3-celled stage.
Statement B :
Intine is made of cellulose and pectin and it is discontinuous with germ pores.

1 Both statements A and B are correct.
2 Both statements A and B are incorrect.
3 Statement A is correct and Statement B is incorrect.
4 Statement A is incorrect and Statement B is correct.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341993 Exine of pollen is
A. Hard outer layer of pollen grain
B. Most resistant organic matter known as layer which can withstand high temperature, strong acids and alkali.
C. Layer made up of sporopollenin.
D. Layer which cannot be degraded by any known enzyme.
Which one of the following is correct?

1 A and B
2 A, B, C
3 A, B, C, D
4 A and C
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341994 Pollen grains are shed in 2 celled stage in

1 \( > 70\% \) Angiosperm plant
2 \( < 50\% \)Angiosperm plant
3 \( > 60\% \)Angiosperm plant
4 \( < 40\% \)Angiosperm plant
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341995 Assertion :
Pollen grain of angiosperm is
considered as a male gametophyte.
Reason :
Pollen grain contains stigma,
style and ovary.

1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341992 Among the following statements related to pollens, choose the correct one.
Statement A :
In \(40 \%\) of angiosperms pollen grains are shed at 3-celled stage.
Statement B :
Intine is made of cellulose and pectin and it is discontinuous with germ pores.

1 Both statements A and B are correct.
2 Both statements A and B are incorrect.
3 Statement A is correct and Statement B is incorrect.
4 Statement A is incorrect and Statement B is correct.
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341993 Exine of pollen is
A. Hard outer layer of pollen grain
B. Most resistant organic matter known as layer which can withstand high temperature, strong acids and alkali.
C. Layer made up of sporopollenin.
D. Layer which cannot be degraded by any known enzyme.
Which one of the following is correct?

1 A and B
2 A, B, C
3 A, B, C, D
4 A and C
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341994 Pollen grains are shed in 2 celled stage in

1 \( > 70\% \) Angiosperm plant
2 \( < 50\% \)Angiosperm plant
3 \( > 60\% \)Angiosperm plant
4 \( < 40\% \)Angiosperm plant
BIOXII02: SEXUAL REPRODUCTION IN FLOWERING PLANTS

341995 Assertion :
Pollen grain of angiosperm is
considered as a male gametophyte.
Reason :
Pollen grain contains stigma,
style and ovary.

1 Both Assertion and Reason are true and Reason is correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Both Assertion and Reason are false.