If the gametes are similar in their appearance they are called as
1.Anisogametes
2.Isogametes
3.Homogametes
4.Both 2 and 3
In which of the following mammal Oestrus cycle is absent:
1.Cow
2.Horse
3.Monkey
4.Rabbit
Which of the following is developed by parthenogenesis:
1.Drones
2.Queen Honey bee
3.Worker honey bee
4.Both 2 and 3
__________ is formed just after fertilization.
1.Morula
2.Blastula
3.Zygote
4.Foetus
Which type of spores are produce by pteridophytes and gymnosperms?
1.Spore myoblast
2.Somatic spores
3.Heterospores
4.Homospores
Which structure provides surface for the settlement of pollen grains in angiosperm plants?
1.Anther
2.Style
3.Stigma
4.Pollen tube
In which organ the growth of pollen tube is observed, till it reaches the ovules?
1.Pollen tube
2.Style
3.Ovary
4.Stigma
Which are the various stages of sexual reproduction?
1.Growth, Development, Differentiation
2.Pre fertilization, Fertilization, Post fertilization
3.Fertilization, Post Fertilization, Pre Fertilization
4.Gametogenesis, Gamete transfer, Gamete Fertilization
Grafting is impossible in monocot-because
1.Vascular bundles are scattered
2.Meristemis absent
3.Collateralopen vascular bundle
4. Radial vascular bundle
Name the fungus which is shown in the figure
1. Conidia
2. Penicillium
3. Algae
4. Zoospore