Assertion : Cleistogamy is advantageous to the plants.

Reason : It results in the assured seed formation even in the absence of pollinators.

1. If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion.

2. If both Assertion & Reason are true but the Reason is not the correct explanation of the Assertion

3. If Assertion is a true statement but Reason is false.

4. If both Assertion and Reason are false.

Subtopic:  Pollination & Outbreeding Devices |
 90%
From NCERT
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A typical anther shows

a. Two lobes with two theca each

b. Each lode as dithecous

c. All cells in a given microsporangium as potential PMC

d. Thousands of micropores per microsporangium
Out of these statements

1. b is incorrect

2. a and b are correct

3. c and d are incorrect

4. a, b, c and d are correct

Subtopic:  Stamen: Anther |
 77%
From NCERT
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Match the following :

Column I Column I
(I) External fertilization (i) pollen grain
(II) Androecium (ii) anther wall
(III) Male gametophyte (iii) algae
(IV) Primary parietal layer (iv) stamens

1. I-iv; II-i; III-ii; IV-iii
2. I-iii; II-iv; III-i; IV-ii
3. I-iii; II-iv; III-ii; IV-i
4. I-iii; II-i; III-iv; IV-ii

Subtopic:  Stamen: Anther |
 88%
From NCERT
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From the statements given below choose the option that are not true for a typical female gametophyte of a flowering plant:

(i) It is 8-nucleate and 7-celled at maturity

(ii) It is cellular during the development

(iii) It is situated inside the nucellus

(iv) It has an egg apparatus situated at the chalazal end

1. i and iv

2. ii and iii

3. i and ii

4. ii and iv

Subtopic:  Pistil: Female Gametophyte |
 63%
From NCERT
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From the statements given below choose the option that is true for a typical female gametophyte.

i. It is eight-nucleate and seven-celled at maturity.
ii. It is free-nuclear during the development.
iii. It is situated inside the integument, but outside the nucellus.
iv. It has an egg apparatus situated at the chalazal end.

1. (i) and (iv)             

2. (ii) and (iii)

3. (i) and (ii)                       

4. (ii) and (iv)

Subtopic:  Pistil: Female Gametophyte |
 83%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

From the statements given below, choose the option that is true for a typical female gametophyte of a flowering plant:

i.  It is 8-nucleate and 7-celled at maturity
ii.  It is free-nuclear during the development
iii.  It is situated inside the integument but outside the nucellus
iv.  It has an egg apparatus situated at the chalazal end

1.i and iv2.ii and iii
3.i and ii4.ii and iv

Subtopic:  Pistil: Ovule | Pistil: Female Gametophyte |
 80%
From NCERT
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Match Column I with Column II and select the correct option using the codes given below:

Column I

 

Column II

A.

Pistils fused together

1.

Gametogenesis

B.

Formation of gametes

2.

Pistillate

C. 

Hyphae of higher ascomycetes  

3.  

Syncarpous

D.

Unisexual female flower

4.

Dikaryotic

Codes:

A    

B     

C     

D

1.

4

3

2

1

2.

2

1

4

3

3.

1

2

4

3

4.  

3

1

4

2

स्तंभ II के साथ स्तंभ I का मिलान करें और नीचे दिए गए संकेतों का उपयोग करके सही विकल्प चुनें:

स्तंभ I

 

स्तंभ II

A.

स्त्रीकेसर एक साथ संगलित

1.

युग्मकजनन

B.

युग्मकों का गठन

2.

स्त्रीकेसरी

C. 

उच्च एस्कोमाइसिटीज के कवक तंतु

3.  

युक्तांडपी

D.

उभयलिंगी मादा पुष्प

4.

द्विकेंद्रकी

Codes:

A    

B     

C     

D

(1)

4

3

2

1

(2)

2

1

4

3

(3)

1

2

4

3

(4)  

3

1

4

2

Subtopic:  Stamen: Microsporangium |
 85%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

From the statements given below choose the option that are not true for a typical female gametophyte of a flowering plant:

(i) It is 8-nucleate and 7-celled at maturity

(ii) It is cellular during the development

(iii) It is situated inside the nucellus

(iv) It has an egg apparatus situated at the chalazal end

1. i and iv

2. ii and iii

3. i and ii

4. ii and iv

Subtopic:  Pistil: Female Gametophyte |
 72%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

From the statements given below choose the option that are not true for a typical female gametophyte of a flowering plant:

(i) It is 8-nucleated and 7-celled at maturity

(ii) It is cellular during the development

(iii) It is situated inside the nucellus

(iv) It has an egg apparatus situated at the chalazal end

1. i and iv

2. ii and iii

3. i and ii

4. ii and iv

Subtopic:  Pollen - Pistil Interaction |
 85%
From NCERT
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Match the two columns that represent plant organs (I) and parts within these organs (II).

 Column I  Column II
A. Carpel (i) calyx, corolla
B. Perianth (ii) Vegetative cell, generative cell
C. Microsporocyte (iii) Stigma, style, ovary
D. Megasporocyte (iv) Antipodal cells, polar nuclei, synergid cell

1. A-(i); B-(iii); C-(ii); D-(iv)

2. A-(iii); B-(iv); C-(i); D-(ii)

3. A-(i); B-(iii); C-(iv); D-(ii)

4. A-(iii); B-(i); C-(ii); D-(iv)

Subtopic:  Pistil: Female Gametophyte |
 80%
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