Select the two correct statements out of the four (a-d) given below about gymnosperms.

a. Roots in some non-vascular archegoniate have a fungal association in the form of mycorrhiza

b. Leaves are well adapted to withstand extremes of temperature, humidity and wind

c. Nucellus is protected by ovary wall and the composite structure is called an ovule

d. Multicellular female gametophyte is retained within megasporangium

The correct statements are

(1) a & c               

(2) b & c

(3) c & d              

(4) b & d

Read the following statements (with respect to angiosperms):

(a) Embryo sac formation is preceded by meiosis.

(b) Pollen grains germinate on the ovule and the resulting pollen tube grows through the tissues of stigma and style.

(c) A large group of plants occurring in a wide range of habitats.

(d) Synergids, antipodals, and PEN degenerate after fertilization.

How many of the above statement(s) is/are wrong?

(1) Two

(2) Three

(3) Four               

(4) One

Read the following statements

a. Sporophyte is the dominant, photosynthetic, independent phase of the plant.

b. Highly reduced female gametophyte as embryosac is present in their ovule.

c. The pollen grains are carried in air currents and come in contact with the opening in the ovules.

How many statements are correct for gymnosperms and angiosperms respectively?

1. One and two

2. Zero and three

3. Two and two

4. Three and two

Double fertilisation is seen in

1.  Pinus

2.  Cycas

3.  Lycopodium

4.  Wolffia

The first cell representative of gametophytic generation is

1 Zygote              

2 Oospore

3 Spore mother cell        

4 Spore

Vascular archegoniates with diplontic life cycle are

1 Bryophytes

2 Pteridophytes

3 Gymnosperms

4 More than one option is correct

Which of the following feature(s) is/are exclusive in angiosperms :-

a. Presence of fruit

b. Double fertilization

c. Female gametophyte

d. Presence of flowers

e. Formation of endosperm

f. Presence of vessels and companion cells

Tick the right one :-

1. a, b, c, e

2. b, c, d, e

3. b, d, e, f

4. a, b, d, f

Select the correct statement(s)

1. Only a few bryophytes are heterosporous

2. Double fertilization is unique to angiosperms

3. Strobili are found in Selaginella & Salvinia

4. Female gametophytes of gymnosperm have an independent free-living existance

Mark the incorrect match
1. No embryo formation — Polysiphonia.
2. No reduction division in zygote— Polytrichum.
3. Vascular tissue present—Azolla.
4. Pollen directly lands on ovule—Wolffia.

Some plant groups exhibit intermediate condition with respect to
life cycle pattern. Which characteristic will not be
exhibited by such kind of plant?

1. Haplodiplontic life cycle pattern.
2. Both phases are multicellular and often free living.
3. They can differ in their dominant phase.
4. Meiosis takes place in the zygote