Examples of Green alga is not

(1) Chlamydomonas,Volvox,Ulothrix

(2) Spirogyra

(3) Chara

(4) Fucus

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 87%
From NCERT
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Vegetative reproduction in chlorophyceae takes place by

(1) Fragmentation+ spore formation

(2) Only spore formation

(3) Only Fragmentation

(4) Isogamous

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 59%
From NCERT
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Asexual reproduction in chlorophyceae is by

(1) Zoospore formation in Antheriodiophore

(2) Fragmentation

(3) Zoospore formation in Zoosporangia

(4) Both 1 and 2

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae: II | Chlorophyceae: Green Algae |
 58%
From NCERT
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Zoospore formed during asexual reproduction in chlorophyceae are

(1) Flagellated

(2) Non-flagellated

(3) Ciliated

(4) Non ciliated

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 87%
From NCERT
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This picture is associated with an organism that belongs to a class. Which of the following features is not correct about that class?

                                  

(1) Three types of sexual reproduction

(2) A variety of chloroplast in different species

(3) Inner pectose and outer cellulose in cell wall

(4) Pigments-choorophyll a and chlorophyll b

Subtopic:  Chlorophyceae: Green Algae: I | Chlorophyceae: Green Algae |
 75%
From NCERT
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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

Subtopic:  Pteridophytes: Heterospory | Pteridophytes |
 52%
From NCERT
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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

Subtopic:  Classification System: I | Classification System: II | Classification System |
 65%
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Classification of organisms on the basis of gene sequencing is

1.  Cytotaxonomy

2.  Karyotaxonomy

3.  Chemotaxonomy

4.  Classical taxonomy

Subtopic:  Classification System: I | Classification System: II | Classification System |
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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.

Subtopic:  Pheophyceae: Brown Algae |
 85%
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Which of the following Algae shows anisogamy?

1.  Volvox.

2. Eudornia.

3. Spirogyra.

4. Ulothrix.

Subtopic:  Algae |
 80%
From NCERT
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