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Biological Classification

332 Questions Start Allen Test
All Exams Allen
Q126 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Which of the followings is/are symbiotic associations between autotrophic and heterotrophic organisms only
(A) Mycorrhiza between fungi and roots of higher plants
(B) Lichen between phycobiont and mycobiont.
(C) Coralloid roots of Cycas having cyanobacteria.
(D) Obligate association between Pinus roots and fungi making mycorrhizae.
A.
A & B
B.
B & C
C.
A, B & C
D.
A, B & D
Q127 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Bacteriophages are made of both proteins and genetic material. Their genetic material is generally-
A.
ss DNA
B.
ds DNA
C.
ss RNA
D.
ds RNA
Q128 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Find the correct from the followings.
A.
T.O. Diener discovered a new infectious agent, smaller than virus and named them as prions.
B.
Viroids lack the protein coat and made of only free RNA.
C.
The RNA of viroids is of high molecular weight.
D.
Lichens are very good pollution indicators as they grow only in polluted areas.
Q129 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA Match the Columns
Match the Column-I with Column-II and find out the correct as shown ?
Column-IColumn-II
(a)Pollution indicator
(b)Mycobiont
(c)Potato spindle
(d)Obligate parasite
(P)Fungal
(Q)Viroid component
(R)Lichen tuber disease
(S)Virus
A.
a - r, b - p, c - s, d - q
B.
a - r, b - s, c - p, d - q
C.
a - s, b - r, c - p, d - q
D.
a - r, b - p, c - q, d - s
Q130 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
In lichen fungal component is responsible to provide?
A.
Shelter to phycobiont
B.
Mineral absorption
C.
Water absorption
D.
All of the above
Q131 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
The protein coat of viruses is called :-
A.
Capsomeres
B.
Capsid
C.
Sheath
D.
Envelope
Q132 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Lichens are :-
A.
Symbiotic association between algae and fungi
B.
Pollution indicators
C.
Not placed in any kingdom by R.H. Whittaker
D.
All of these are correct BBC142
Q133 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Phycobiont is a :
A.
algal, autotrophic component of mycorrhiza
B.
fungal, heterotrophic component of lichen
C.
fungal component of mycorrhiza
D.
algal, autotrophic component of lichen
Q134 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Identify the a & b figure and their P and Q part.
A.
a - Tobacco Mosaic virus, b - Bacteriophage P → RNA, Q →Head
B.
a - Bacteriophage,b - Tobacco Mosaic virus P → RNA, Q → Head
C.
a - Potato Mosaic virus, b - Cyanophage P → Head, Q → RNA
D.
a - Smallpox virus, b - Influenza virus P → RNA, Q → Head
Q135 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Choose the incorrect pair :-
A.
Virus – Nucleocapsid
B.
Viroids – Only RNA
C.
Lichen – Algae and fungi
D.
Mycorrhiza – BGA and higher plants
Q136 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Which of the given organism(s) belong to kingdom protista according to five kingdom system?
(A) Virus (B) Euglena (C) Viroids (D) Lichen
A.
A and B
B.
C and D
C.
Only B
D.
A and C
Q137 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
The transfer of genetic material from one bacterium to other bacterium from virus, is called:-
A.
Conjugation
B.
Transduction
C.
Transformation
D.
Crossing over
Q138 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Read the following statements :
(i) Mycorrhiza is the symbiotic association between roots of higher plants and fungus.
(ii) Lichens are biological indicator for water pollution.
(iii) Viroids contain only low molecular weight DNA and protein.
(iv) W.M. Stanley crystallised TMV Which of the above statements are correct:
A.
(i), (ii) and (iv)
B.
(i) and (iv)
C.
(ii) and (iii)
D.
(i) and (ii)
Q139 Allen VIRUS, VIROIDS, LICHEN, MYCORRHIZA MCQ
Which of the following benefit is not provided by fungi to symbiotic plant ?
A.
Protection from pathogen
B.
Availability of water
C.
Availability of phosphate
D.
Ability to fix nitrogen
Q140 Allen PYQ MCQ
Five kingdom system of classification suggested by R.H. Whittaker is not based on
A.
Presence or absence of a well defined nucleus.
B.
Mode of reproduction.
C.
Mode of nutrition.
D.
Complexity of body organisation.
Q141 Allen PYQ MCQ
Archaebacteria differ from eubacteria in :
A.
Cell membrane
B.
Mode of nutrition
C.
Cell shape
D.
Mode of reproduction
Q142 Allen PYQ MCQ
Anoxygenic photosynthesis is characteristic of :
A.
Rhodospirillum
B.
Spirogyra
C.
Chlamydomonas
D.
Ulva
Q143 Allen PYQ MCQ
Which of the following shows coiled RNA strand and capsomeres?
A.
Polio virus
B.
Tobacco masaic virus
C.
Measles virus
D.
Retrovirus
Q144 Allen PYQ MCQ
Transformation was discovered by :-
A.
Meselson and Stahl
B.
Hershey and Chase
C.
Griffith
D.
Watson and Crick
Q145 Allen PYQ MCQ
Viruses have :-
A.
DNA enclosed in a protein coat
B.
Prokaryotic nucleus
C.
Single chromosome
D.
Both DNA and RNA
Q146 Allen PYQ MCQ
Which one of the following living organisms completely lacks a cell wall?
A.
Cyanobacteria
B.
Sea–fan (Gorgonia)
C.
Saccharomyces
D.
Blue–green algae
Q147 Allen PYQ MCQ
Which one of the following matches is correct ?
A.
Alternaria — Sexual reproduction absent — Deuteromycetes
B.
Mucor — Reproduction by Conjugation — Ascomycetes
C.
Agaricus — Parasitic fungus — Basidiomycetes
D.
Phytophthora — Aseptate mycelium — Basidiomycetes
Q148 Allen PYQ MCQ
True nucleus is absent in :-
A.
Mucor
B.
Vaucheria
C.
Volvox
D.
Anabaena
Q149 Allen PYQ MCQ
Which one of the following is not an inclusion body found in prokaryotes ?
A.
Cyanophycean granule
B.
Glycogen granule
C.
Polysome
D.
Phosphate granule BBC212
Q150 Allen PYQ MCQ
The guts of cow and buffalo possess:
A.
Chlorella spp.
B.
Methanogens
C.
Cyanobacteria
D.
Fucus spp.