In the given diagrams, some of the algae have been labelled as A, B, C, D and E. Choose the correct option to identify these algae.
|
A |
B |
C |
D |
E |
(1) |
Dictyota |
Polysiphonia |
Porphyra |
Fucus |
Laminaria |
(2) |
Porphyra |
Dictyota |
Laminaria |
Fucus |
Polyspiphonia |
(3) |
Dictyota |
Polysiphonia |
Porphyra |
Laminaria |
Fucus |
(4) |
Fucus |
Porphyra |
Dictyota |
Polysiphonia |
Laminaria |
Difficulty Level:
Classical Taxonomy is based on
(1) morphological traits
(2) habitat of organisms
(3) similarities and dissimilarities of behaviour
(4) phylogeny
Difficulty Level:
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
Difficulty Level:
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
Difficulty Level:
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
Difficulty Level:
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
Difficulty Level:
Gelatin, an important raw material for preparation of photographic emulsion is a by product of
(1) chicken
(2) forest
(3) cattle
(4) fish
Difficulty Level:
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
Difficulty Level:
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 |
Difficulty Level:
Cycas is classified as a gymnosperms due to its
(1) motile sperms
(2) fruit formation
(3) naked ovule
(4) pycnoxylic wood
Difficulty Level: