Monoecious and Dioecious

Q.

Which one of the following is Monoecious?

1. Marchantia

2. Cycas

3. Pinus

4. date palm

Q. Male gametophyte (mature pollen grain) of Pinus is found to be

1. 10 celled
2. 4 celled
3. 2 celled
4. 6 celled

Q. Which of the following structures in Pinus are haploid?

1. Megaspore, integument, root
2. Endosperm, mega spore, pollen grain
3. Pollen grain, leaf, root
4. Megaspore, endosperm, embryo

Q. Hydra is a freshwater polyp . So , why it is placed in class HYDROZOA ?

Q.

Identify the parts labelled 1 and 2 in the given figure

1. 1 - Anthredium, 2 - Archegonium

2. 1 - Ascogonium, 2 - Antheridium

3. 1 - Oogonium, 2 - Antheridium

4. 1 - Antheridium, 2 - Carpogonium