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%
From NCERT
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Identify X

(1) Stem

(2) Runner

(3) Offset

(4) Bud

Subtopic:  Asexual Reproduction |
 90%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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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Birds like turkey undergo _________ to produce offspring.

A. Sexual reproduction

B. Asexual reproduction

C. Parthenogenesis

D. Lay egg

Subtopic:  Sexual Reproduction |
 84%
From NCERT
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Small aquatic animals produce large number of gametes in surrounding water

A. to enhance the chances of syngamy

B. to produce large number of offspring

C. offspring are extremely vulnerable to predators threatening their survival

D. Both A and C

Subtopic:  Events during Sexual reproduction |
From NCERT
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