A typical angiosperm embryo sac at maturity is:

1. 7-nucleate and 7-celled

2. 8-nucleate and 8-celled

3. 8-nucleate and 7-celled

4. 7-nucleate and 8-celled

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

1. Ovules develop into an embryo sac

2. Ovary develops into fruit

3. Zygote develops into an embryo

4. Central cell develops into endosperm

Which is the most common type of embryo sac in angiosperms?

1. Tetrasporic with one mitotic stage of division

2. Monosporic with three sequential mitotic divisions

3. Monosporic with two sequential mitotic divisions

4. Bisporic with two sequential mitotic divisions

Functional megaspore in an angiosperm develops into :

In majority of angiosperms

1.  egg has a filiform apparatus

2.  there are numerous antipodal cells

3.  reduction division occurs in the megaspore mother cells

4.  a small central cell is present in the embryo sac

Filiform apparatus is a characteristic feature of

1. Generative cell

2. nucellar embryo

3. aleurone cell

4. synergids

In angiosperms, microsporogenesis and megasporogenesis

1. Occur in anther

2. Form gametes without further divisions

3. Involve meiosis

4. Occur in ovule

Function of filiform apparutus is to :

1. Recognize the suitable pollen at stigma

2. Stimulate division of genrative cell

3. Producer nectar

4. Guide the entry of pollen tube

The gynoecium consists of many free pistils in flowers of

1. Aloe

2. Tomato

3. Papaver

4. Michelia