Classical Taxonomy is based on

(1) morphological traits

(2) habitat of organisms

(3) similarities and dissimilarities of behaviour

(4) phylogeny

Subtopic:  Clssification System: I | Clssification System |
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Read the following statements reagrding bryophytes and choose the incorrect option.

(1) Gametophytic phase is dominant in life cycle

(2) Fertilisation takes place in presence of water

(3) Zygote undergoes meiosis to produce sporophyte

(4) Sporophyte isphysiologically dependent on gametophyte

Subtopic:  Bryophytes |
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Artificial taxonomy is connected with the

(1) use of habit and habitat of organisms

(2) based on the presence or absence of chemicals in cells or tissues

(3) based on morphological traits

(4) based on evolutionary history of a species

Subtopic:  Clssification System: I | Clssification System |
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Fertilisation is internal is Spirogyra. Where would you get zygospores, if 3 filaments are conjugating by scalariform conjugation?

(1) Lateral filaments

(2) Central filaments

(3) Central filament and both lateral filaments

(4) Either central or lateral filament

Subtopic:  Algae |
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In Cycas

(1) ovlule and microsporangia are present in same sporophyll

(2) micro and megasporophyllus are present in same cone

(3) male cone and megasporophylls are borne on the same plant

(4) male cone and megasporophylls are borne on separate individual plants

Subtopic:  Gymnosperms: I | Gymnosperms |
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Gelatin, an important raw material for preparation of photographic emulsion is a by product of

(1) chicken

(2) forest

(3) cattle

(4) fish

Subtopic:  Algae |
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Phylogenetic system of classification includes

(1) evolutionary trends only

(2) genetic trends only

(3) evolutionary trend as well as morphology

(4) behavioural trends in environment

Subtopic:  Clssification System: I | Clssification System |
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Match items in Column I with those in Column II.

 

Column I

 

Column II

A.

Peritrichous flagella

1.

Ginkgo

B.

Living fossil

2.

Macrocystis

C. 

Rhizophore

3.

E.coli

D.

Smallest flowering plant    

4.

Selaginella

E.

Largest perennial alga

5.

Wolffia

 

 

A   

B   

C   

D   

E

(1)

3

1

4

5

2

(2)

2

3

4

1

5

(3)

4

2

1

5

3

(4)  

2

4

3

5

1

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Cycas is classified as a gymnosperms due to its

(1) motile sperms

(2) fruit formation

(3) naked ovule

(4) pycnoxylic wood

Subtopic:  Gymnosperms: I | Gymnosperms |
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Elater mechanism for seed dispersal is exhibited by

(1) Riccia

(2) Marchantia

(3) Dryopteris

(4) Funaria

Subtopic:  Bryophytes (Liverworts) |
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