Select the wrong statement.

(1) Isogametes are similar in structure, function and behaviour

(2) Anisogametes differ either in structure, function and behaviour

(3) In oomycetes female gamete is smaller and motile, while male gamete is larger and non-motile

(4) Chlamydomonas exhibits both isogamy and anisogamy and Fucus shows oogamy

Isogamous condition with non-flagellated gametes is found in

(1) Chlamydomonas

(2) Spirogyra

(3) Volvox

(4) Fucus

Besides paddy fields, cyanobacteria are also found inside vegetative part of

(1) Pinus

(2) Cycas

(3) Equisetum

(4) Psilotum

Megasporangium is equivalent to

(1) embroy sac

(2) fruit

(3) nucellus

(4) ovule

Read the following statements (IV) and answer the question which follows them

I. In liverworts, mosses and ferns gametophytes are free living.

II. Gymnosperms and some ferns are heterospores.

III. Sexual reproduction in Fucus, Volvox and Albugo is oogamous.

IV. The sporophyte in liverworts is more elaborate than that in mosses.

How many of the above statemetns are correct?

(1) One

(2) Two

(3) Three

(4) Four

Meiosis takes place in

(1) Meiocyte

(2) Conidia

(3) Gemmule

(4) Megaspore

Cycas and Adiantum resemble each other in having

(1) seeds

(2) motile sperms

(3) cambium

(4) vessels

Which one of the following is a correct statement?

(1) Pteridophyte gametophyte has a protonemal and leafy stage

(2) In gymnosperms female gametophyte is free-living

(3) Antheridiophores and archegoniophores are present in pteridophytes

(4) Origin of seed habit can be traced in pteridophytes

Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?

(1) Diplontic life cycle

(2) Members of kingdom-Plantae

(3) Mode of nutrition

(4) Multiplication by fragmentation

Gymnosperms are also called soft wood spermatophhytes because they lack

(1) cambium

(2) phloem fibres

(3) thick-walled tracheids

(4) xylem fibres