Gametophyte in the pteridophytes is

(i) Small, inconspicuous.
(ii) Long lived, unicellular.
(iii) Mostly photosynthetic thalloid or saprophytic.
(iv) Short lived, haploid.

How many statements are correct with respect to gametophyte?

1. Two 

2.Three

3. Four 

4. One

Given below are three statements each with one blank. Select the option which correctly fill up the blanks in two statements

(i) _______ systems gave equal weightage to vegetative and sexual characteristics.

(ii) Number and codes are assigned to all the characters and the data are then processed in _______ taxonomy.

(iii) ________ systems assume that organisms belonging to the same taxa have a common ancestor.

1. (i) - Artificial, (iii) - Natural

2. (ii) - Phenetics, (iii) - Artificial

3. (i) - Artificial, (ii) - Chemotaxonomy

4. (iii) - Phylogenetic, (i) - Artificial

Classification of organisms on the basis of gene sequencing is

1.  Cytotaxonomy

2.  Karyotaxonomy

3.  Chemotaxonomy

4.  Classical taxonomy

Asexual spored in brown algae are

1.  Non-motile sporangiospore.

2.  Biflagellated zoospores with two equal flagella.

3. Quadriflagellated zoospores with thick cell walls.

4.  Biflagellated zoospores with two unequal lateral flagella.

Which of the following Algae shows anisogamy.

1.  Volvox.

2. Eudorina.

3. Spirogyra.

4. Ulothrix.

In mosses vegetative reproduction takes place by fragmentation & budding in

1. Primary protonema.

2. Secondary protonema.

3. Rhizoids.

4. Both 1 and 2.

Read the following and choose the incorrect statement

1. Majority of red algae are marine with greater concentrations found in the warmer areas.

2. Thallus of Marchantia is dorsiventral and closely appressed to the substrate.

3. In Sequoia, reduced male gametophyte is called pollen grain and its endosperm represents future sporophytes.

4. Wolfia is the smallest flowering plant.

Study the figure and find out an incorrect statement.

1. Contains laminarin or mannitol as reserve food.

2. Life-cycle is diplontic.

3. Union of gamete may take place in water or within the oogonium.

4. Gametes with two apically inserted flagella.

Pinus seed cannot germinate and establish without fungal association. This is because:

1.  its seeds contain inhibitors that prevent germination.

2.  its embryo is immature.

3.  it has obligate association with mycorrhizae.

4.  it has very hard seed coat.

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in :

1. Gymnosperms

2. Liverworts

3. Mosses

4. Pteridophytes