Which structure provides surface for the settlement of pollen grains in angiosperm plants?
A.Anther
B.Style
C.Stigma
D.Pollen tube
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
Grafting is impossible in monocot-because
A. vascular cambium is absent
B. Meristematic tissue is absent
C. Collateralopen vascular bundle
D. Radial vascular bundle
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
Identify the structure
A.Conidia
B.Penicillium
C.Algae
D.Zoospore
Identify X
(1) Stem
(2) Runner
(3) Offset
(4) Bud
Identify A and B
1. A-Archegoniphore, B-Anthediophore
2. A- Anthediophore, B- Archegoniphore
3. A-Anthridium, B-Style
4. A-Ovary, B-Blastopore
Identify A and B
(1) A- Antheridium, B-Oogonium
(2) A-Oogonium, B- Antheridium
(3) A-Ovary, B- Endosperm
(4) A- Ovary, B-Seed
Organism in which both male and female gametes are motile are
A. Algae
B. Fungi
C. Fish
D. Both A and B
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