Recognise the diagram and choose the correct option:- 

1. Hibiscus, multicarpellary syncarpous pistil
2. Multicarpellary syncarpous pistil of papaver
3. Multicarpellary apocarpous gynoecium of Michelia
4. Monocarpellary gynoecium

Some stages of development of dicot embryo are given below :-

a. Proembryo

b. Globular stage

c. Heart shape

d. Mature embryo

Arrange the given stages in correct sequence?

1. a, b, c, d

2. c, d, b, a

3. a, c, d, b

4. b, d, c, a

Triple fusion involves the fusion of:-

1. Two male gametes and one egg cell

2. Two egg cell and one male gamete

3. Two male gametes and secondary nucleus

4. One male gamete and secondary nucleus

In angiosperms, triple fusion is required for the formation of:-

1. Fruit wall

2. Seed coat

3. Embryo sac

4. Endosperm

Formation of embryo sac from a single megaspore nuclei is termed as

1. Bishopric development

2. Monosporic development

3. Tetrasporic development

4. Polysporic development

Choose the correct match with respect to angiosperm

1. Microsporanigum - ovule; Megasporangium - female gametophyte

2. Megasporangium - ovule; Embryo sac - female gametophyte

3. Megasporangium - female gametophyte; Embryo sac - ovule

4. Nucellus - male gametophyte; Megasporangium - ovule

The stalk by which an ovule is attached to the placenta is called

1. Funicle

2. Hilum

3. Chalaza

4. Micropyle

Mark the mis-matched pair

1. Orchid           -  Tiny seeds

2. Hydrophily    -  Common in dicots

3. Pollen grain   -  25 to 50 $\mathrm{\mu m}$ in diameter

4. Parthenium   -  Pollen allergy 

During microsporogenesis

1. Microspore tetrad is developed by meiosis in sporogenous tissue

2. Pollen grains are developed by mitosis in sporogenous tissue

3. Microspore develops into the male gametophyte

4. Male gametes are produced by pollen grain

Which one of the following statements is not true?