Which structure provides surface for the settlement of pollen grains in angiosperm plants?

A.Anther

B.Style

C.Stigma

D.Pollen tube

Subtopic:  Events during Sexual reproduction |
 83%
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Which are the various stages of sexual reproduction?

A.Growth, Development, Differentiation

B.Pre fertilization, Fertilization, Post fertilization

C.Fertilization, Post Fertilization, Pre Fertilization

D.Gametogenesis, Gamete transfer, Gamete Fertilization

Subtopic:  Events during Sexual reproduction |
 85%
From NCERT
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Grafting is impossible in monocot-because

A. vascular cambium is absent 

B. Meristematic tissue is absent

C. Collateralopen vascular bundle

D. Radial vascular bundle

Subtopic:  Artificial |
 67%
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Match the following

(P) Fission                   (i) Ulothrix, Saprolegnia

(Q) Budding               (ii) Oedogonium, Chlamydomonas

(R) Fragmentation   (iii) Algal, Fungi, Monera

(S) Sporulation        (iv) Dictyota, Fucus, Protosiphon

(1) P-i, Q-ii,R-iii, S-iv

(2) P-ii, Q-iii, R-iv, S-i

(3) P-iii, Q-iv, R-i, S-ii

(4) P-iii, Q-iR-ii, S-iv

 

Subtopic:  Asexual Reproduction |
 57%
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Identify the structure

A.Conidia

B.Penicillium

C.Algae

D.Zoospore

Subtopic:  Asexual Reproduction |
 83%
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Identify X

(1) Stem

(2) Runner

(3) Offset

(4) Bud

Subtopic:  Asexual Reproduction |
 90%
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Identify A and B


1. A-Archegoniphore, B-Anthediophore

2. A- Anthediophore, B- Archegoniphore

3. A-Anthridium, B-Style

4. A-Ovary, B-Blastopore

Subtopic:  Events during Sexual reproduction |
 83%
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Identify A and B

(1) A- Antheridium, B-Oogonium

(2) A-Oogonium, B- Antheridium

(3) A-Ovary, B- Endosperm

(4) A- Ovary, B-Seed

Subtopic:  Events during Sexual reproduction |
 84%
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Organism in which both male and female gametes are motile are

A. Algae

B. Fungi

C. Fish

D. Both A and B

Subtopic:  Events during Sexual reproduction |
 77%
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The most vital event of sexual reproduction is perhaps the fusion of gametes. This process called _________ results in the formation of a diploid _________.

A. Syngamy, Zygote

B. Fertilization, Zygote

C. Copulation, Foetus

D. Both A and B are true

Subtopic:  Events during Sexual reproduction |
 59%
From NCERT
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