1. During the development of female gametophyte, megaspore tetrad is absent in:
A) Taxus
B) Gnetum
C) Ephedra
D) Pinus
2. Winged seeds are present in
A) Cycas
B) Pinus
C) Gnetum
D) Ephedra
3. Pavement tissue, a unique region occurs in the ovule of the gymnosperm
A) Gnetum
B) Taxus
C) Agathis
D) Ephedra
4 . During the development of female gametophyte, megaspore tetrad is absent in:
A) Taxus
B) Gnetum
C) Ephedra
D) Pinus
5. The pollen grains of Pinus at the time its release is -----.
A) One-nucleate
B) Two nucleate
C) Three nucleate
D) Four nucleate
6. Pavement tissue, a unique region occurs in the ovule of the gymnosperm
A) Gnetum
B) Taxus
C) Agathis
D) Ephedra
7. The seed known by the name ‘Chilgoza’, that is used as a dry fruit
A) Zamia
B) Pinus gerardiana
C) Cedrus deodara
D) Cycas racemosa
8. The dwarf shoots of Pinus wallichiana are
A) Monofoliar
B) Bifoliar
C) Trifoliar
D) Pentafoliar
9. The number of neck canal cells in the archegonium of Cycas is
A) 2
B) 4
C) 6
D) 0
10. Choose the characteristic features of Cycas archegonium from the given statements:
1. Mature archegonium has two neck cells
2. A largest egg
3. Neck canal cells are not formed
A) 1 & 2 only
B) 2 & 3 only
C) 2 only
D) 1, 2 & 3
Answers
1. B) Gnetum
2. B) Pinus
3. A) Gnetum
4. B) Gnetum
5. D) Four nucleate
6. A) Gnetum
7. B) Pinus gerardiana
8. D) Pentafoliar
9. D) 0
10. D) 1, 2 & 3