Sexual Reproduction in Flowering Plants

Q.

Vegetative propagation in plants is a type of asexual reproduction because:

1. Only mitotic cell division taken place.

2. No fusion of gametes taken place.

3. No genetic recombination takes place.

4. All of the above.

Q. Heterostyly as a contrivance for cross pollination is found in

1. Pennisetum
2. Oenothera
3. Primula vulgaris
4. Impatiens

Q. Which of the following is not true about microsporogenesis and megasporogenesis?

I) All the cells in the microspore and megaspore tetrad give rise to microspores and megaspores respectively.
II) Both the processes involve meiotic division.
III) One of them occurs in the ovule and the other occurs in the megasporangium.
IV) One of them results in the formation of mature embryo sac and the other results in the formation of pollen grains.

1. I, III & IV are not true
2. Only I and III are not true
3. I and II are not true
4. Only III is not true

Q. Name those parts of flower which serves the same function in animals :

1. Testis
2. Ovary
3. Eggs
4. Sperms

Q.

We can find tepals in

1. monocot flower

2. monocot stem

3. None of these

4. dicot root

Q. Endosperm of Pinus is

1. Male gametophyte
2. Female gametophyte
3. Sporophyte
4. None of the above