1. Choose the correct option
i. Number of chromosome of gamete in human is-
a. 6 b. 19 c. 23 d. 20
ii. Which of the following undergoes longitudinal binary fission
a. Euglena. b. Plasmodium c. Planaria d. Paramoecium
iii. Female gametophyte in angiosperm is represented by-
a. Ovule b. Megaspore mother cell c. Embryosac d. Nucellus
iv. Anemophily is pollination through
a. Water. b.Wind. c. Insect d. Worms
v. The process of formation of gametes is called
a. sporogenesis b. gametogenesis c. Gameogenesis d. None of the above
2. Fill in the blanks
a. Life cycle has three phases namely ___________, __________ and __________
b. A typical pollen grain contains two cells __________________ cell and __________________cell.
c. An embryo sac contains __________ nuclei and _________cells.
3.Give answer of the following questions
a. What is embtyosac? Draw the diagram of embryosac and label it.
b. What do you mean by vegetative propagation? Write any 3 advantage of vegetative propagation.
c. What is a flower? Draw the structure and label it's part.
d. Define Pollination. What are the types of pollination? Define them.
4.Define any two
i. Fertilization
ii. Life span
iii. Entemophily
iv. Reproduction
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