Identify the statements that are true for anemophilous flowers

     a.  Pollen grains are light and non-sticky.
     b.  They possess well exposed stamens.
     c.  They have large coloured flowers.
     d.  They have single ovule in each ovary.
     e.  Flowers produce nectar and scent.

1.  a, b and e

2.  a, b and d

3.  b, c and e

4.  c, d and e

Choose the incorrect statement with respect to pollen grain

1. Exine of the pollen grain has prominent apertures called germ pores where sporopollenin is absent.

2. Inner wall of the pollen grain is called intine.

3. Pollen grains are generally spherical in shape.

4. In 60 percent of angiosperms, pollen is shed at three-celled stage.

Choose the correct statements
a. Perisperm is the persistant nucellus in the seeds of black pepper.
b. Single large cotyledon in grass is situated towards lateral side of the embryonal axis.
c. Seeds are the basis of agriculture.
d. Citrus has only one embryo in a seed.

1. Only a

2. Only a & b

3. Only a, b & c

4. a, b, c & d

From the statements given below choose the option that are not true for a typical female gametophyte of a flowering plant:

(i) It is 8-nucleate and 7-celled at maturity

(ii) It is cellular during the development

(iii) It is situated inside the nucellus

(iv) It has an egg apparatus situated at the chalazal end

1. i and iv

2. ii and iii

3. i and ii

4. ii and iv

Match the following and choose correct option
          Group A                        Group B
A. Aleurone layer               i. without fertilization

B. Parthenocarpic fruit       ii. Nutrition fruit

C. Ovule                           iii. Double fertilization

D. Endosperm                   iv. Seed

1. A-i, B-ii, C-iii, D-iv

2. A-ii, B-i, C-iv, D-iii

3. A-iv, B-ii, C-i, D-iii

4. A-ii, B-iv, C-i, D-iii

Following are four statements find out correct statements

(i) Microsporangia has four layers, outer three are protective and inner one is nutritive

(ii) Each cell of sporogenous tissue within micorsporangia is capable of giving raise to a microspore tetrad.

(iii) Dehydration of anther is important for seperation of pollen grains in a tetrad.

(iv) Generative cell in pollen grain is small with respect to vegetative cell and it floats in cytoplasm of vegetative cell.

Options

1. All are correct

2. Only (i), (ii) and (iii) is correct

3. Except (ii) all are correct

4. Expect (iii) all are correct.

The pollen grain represents

1. Male gamete

2. Male gametophyte

3. Microsporophyll

4. Microsporangium

Choose the correct option with respect to the function of the germ pore.

1. It allows growth of pollen tube

2. It allows water absorption in seed

3. It helps dehiscence of pollen grain

4. More than one option is correct

The number of mitotic generations required to form a mature embryo sac from megaspore in most of the flowering plants is

1. One 

2. Two 

3. Three

4. Four

Hydrophily is limited to 30 genera which are mostly

1. Gymnosperms

2. Monocots

3. Dicots

4. More than one option is correct