They are archaebacteria.
They live in marshy areas.
Methane is their preferred carbon source.
They are present in guts of several ruminant animals (cow, buffaloes) and produce biogas (CH4) from the dung of these animals.
C. Methane is their preferred carbon source.
i & ii only
ii & iii only
i, ii, & iv only
All of these
(i) only
(ii) only
(iii) only
(iv) only
A single flagellum lies in the transverse groove between the cell plates.
A single flagellum lies in the longitudinal groove between the cell plates.
Two flagella, one lies longitudinally and the other transversely in a furrow between the wall plates.
Flagella are absent.
A – Cell wall, B – Cell membrane, C – Heterocyst, D – DNA, E – Mucilagenous sheath
A – Cell wall, B – Cell membrane, C – DNA, D – Heterocyst, E – Mucilagenous sheath
A – Mucilagenous sheath, B – Cell membrane, C – DNA, D – Heterocyst, E – Cell wall
A – Cell membrane, B – Cell wall, C – DNA, D – Heterocyst, E – Mucilagenous sheath
Sac fungi
Bracket fungi
Imperfect fungi
Phycomycetes
Paramecium and Plasmodium belong to the same kingdom as that of Penicillium.
Lichen is a composite organism formed from the symbiotic association of an alga and a protozoan.
Yeast used in making bread and beer is a fungus.
Nostoc and Anabaena are examples of protista.
Viruses are obligate parasites.
Viruses can multiply only when they are inside the living cells.
Viruses cannot pass through bacterial filters.
Viruses are made up of protein and DNA or RNA (never both DNA and RNA).
two haploid cells including their nuclei.
two haploid cells without nuclear fusion.
sperm and egg.
sperm and two polar nuclei.
fix atmospheric nitrogen.
enhance absorption of nutrients from the soil.
kill insects and pathogen.
provide resistance against abiotic stresses.
lichen
mycorrhiza
rhizome
endomycorrhiza
They are the members of the kingdom monera.
They live in extreme habitats such as hot springs, deserts, snow and deep oceans.
They show the most extensive metabolic diversity.
All of the above
Anabaena Cyanobacteria
Amoeba Protozoa
Gonyaulax Dinoflagellates
Albugo Chrysophytes
only RNA.
only DNA.
RNA and DNA both
RNA or DNA i.e. one nucleic acid in a virus.
AIDS and mumps
Small pox and herpes
Influenza
Cholera
Column-I | Column-II |
---|---|
(Characters/features) | (Examples) |
A. Red dinoflagellates | I. Rhizopus |
B. Unicellular fungi used to | II. Gonyaulax make bread and beer |
C. Source of antibiotics | III. Yeast |
D. Bread mould | IV. Penicillium |
A III; B II; C I; D IV
A II; B III; C I; D IV
A II; B III; C IV; D I
A II; B IV; C III; D I
their nucleic acid must combine with host DNA before replication.
they cannot replicate.
there is no hereditary information.
RNA can transfer heredity material.
Phycomycetes
Ascomycetes
Basidiomycetes
Deuteromycetes
basidiomycetes
ascomycetes
saccharomycetes
haplomycetes
A
B
C sheath
D tail fibres
Agaricus
Alternaria
Neurospora
Mucor
Phycomycetes
Deuteromycetes
Basidiomycetes
Ascomycetes
Archaea resemble eukaryotes in all respects.
Archaea have some novel features that are absent in other prokaryotes and eukaryotes.
Archaea completely differ from both prokaryotes and eukaryotes.
Archaea completely differ from prokaryotes.
insect cannot enter.
bacterial multiplication stops.
bacterial multiplication is reduced.
there is plasmolysis at low temperature.
Dinoflagellates
Chrysophytes
Euglenoids
Slime moulds
Only (iii)
(i), (iii) and (v)
(i), (ii), (iv), and (v)
All of the above
TMV has a double-stranded RNA molecule.
Most plant viruses are RNA viruses.
The bacteriophage has a double-stranded DNA molecule.
Most animal viruses are DNA viruses.
Column-I | Column-II |
---|---|
(Scientists) | (Discovery) |
A. Ernst Mayr | I. Discovered Viroids |
B. Whittaker | II. Gave the name virus |
C. Pasteur | III. Proposed five kingdom classification |
D. Diener | IV. Darwin of the 20th century |
A IV, B III, C II, D I
A III, B IV, C II, D I
A II, B III, C IV, D I
A I, B II, C III, D IV
neither syngamy nor reduction division.
no distinct chromosomes.
no conjugation.
no exchange of genetic material.
A - Tail fibres B - Head C - Sheath D - Collar
A - Sheath B - Collar C - Head D - Tail fibres
A - Head B - Sheath C - Collar D - Tail fibres
A - Collar B - Tail fibres C - Head D - Sheath
conidia
oospores
sporangiospores
zoospores