Which one of the following shows isogamy with non-flagellated gametes?

(1) Sargassum

(2) Ectocarpus

(3) Ulothrix

(4) Spirogyra

Which of the following is responsible for peat formation?

(1) Marchantia

(2) Riccia

(3) Funaria

(4) Sphagnum

Male gametophyte with least number of cells is

(1) Pteris

(2) Funaria

(3) Lilium

(4) Pinus

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) embryo 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 statements 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