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NEET

Biological Classification

Biology

Previous Years Questions

MCQ (Single Correct Answer)

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Which of the following statements is correct?
NEET 2021
Which of the following is correct about viroids?
NEET 2020 Phase 1
Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus :
NEET 2019
Which of the following statements is incorrect?
NEET 2019
Which of the following organisms are known as chief producers in the oceans?
NEET 2018
Ciliates differ from all other protozoans in
NEET 2018
After karyogamy followed by meiosis, spores are produced exogenously in
NEET 2018
Oxygen is not produced during photosynthesis by
NEET 2018
Select the wrong statement.
NEET 2018
Which among the following is not a prokaryote?
NEET 2018
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as wel...
NEET 2017
Which of the following are found in extreme saline conditions?
NEET 2017
Which of the following components provides sticky character to the bacterial cell?
NEET 2017
Viroids differ from viruses in having
NEET 2017
DNA replication in bacteria occurs
NEET 2017
Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the Kingdom
NEET 2016 Phase 1
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the
NEET 2016 Phase 1
Which one of the following statements is wrong?
NEET 2016 Phase 1
Which of the following statements is wrong for viroids?
NEET 2016 Phase 1
One of the major components of cell wall of most fungi is
NEET 2016 Phase 1
Methanogens belong to
NEET 2016 Phase 2
Select the wrong statement.
NEET 2016 Phase 2
Which one of the following is wrong for fungi?
NEET 2016 Phase 2
The imperfect fungi which are decomposers of litter and help in mineral cycling belong to
AIPMT 2015
True nucleus is absent in
AIPMT 2015 Cancelled Paper
Which one of the following matches is correct? .tg {border-collapse:collapse;border-spacing:0;width:100%} .tg td{font-...
AIPMT 2015 Cancelled Paper
Cell wall is absent in
AIPMT 2015
Choose the wrong statement.
AIPMT 2015
The structures that help some bacteria to attach to rocks and/or host tissues are
AIPMT 2015
Pick up the wrong statement.
AIPMT 2015
In which group of organisms the cell walls form two thin overlapping shells which fit together?
AIPMT 2015
Which one is a wrong statement?
AIPMT 2015
Select the wrong statement.
AIPMT 2015
Anoxygenic photosynthesis is characteristic of
AIPMT 2014
Which structures perform the function of mitochondria in bacteria?
AIPMT 2014
The motile bacteria are able to move by
AIPMT 2014
Viruses have
AIPMT 2014
Archaebacteria differ from eubacteria in
AIPMT 2014
Five kingdom system of classification suggested by R.H. Whittaker is not based on
AIPMT 2014
Which of the following shows coiled RNA strand and capsomeres?
AIPMT 2014
Why is a capsule advantageous to a bacterium?
NEET 2013 (Karnataka)
Which one of the following is true for fungi?
NEET 2013 (Karnataka)
Pigment containing membranous extensions in some cyanobacteria are
NEET 2013
Which of the following are likely to be present in deep sea water?
NEET 2013
In the five kingdom classification, Chlamydomonas and Chlorella have been included in
AIPMT 2012 Mains
Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?
AIPMT 2012 Prelims
Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?
AIPMT 2012 Prelims
The most abundant prokaryotes helpful to humans in making curd ftom milk and in production of antibiotics are the ones c...
AIPMT 2012 Prelims
The cyanobacteria are also referred to as
AIPMT 2012 Prelims
Nuclear membrane is absent in
AIPMT 2012 Prelims
Which statement is wrong for viruses?
AIPMT 2012 Prelims
Maximum nutritional diversity is found in the group
AIPMT 2012 Prelims
Which one of the following is incorrectly matched?
AIPMT 2011 Prelims
The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of ...
AIPMT 2011 Mains
In eubacteria, a cellular component that resembles eukaryotic cell is
AIPMT 2011 Prelims
Which one of the following organisms is not an eukaryotic cells?
AIPMT 2011 Prelims
Which one of the following also acts as a catalyst in a bacterial cell?
AIPMT 2011 Prelims
Given below is the diagram of a bacteriophage. In which one of the options all the four parts A, B, C and D are correct?...
AIPMT 2010 Mains
Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i) &nb...
AIPMT 2010 Mains
Black (stem) rust of wheat is caused by
AIPMT 2010 Mains
Membrane-bound organelles are absent in
AIPMT 2010 Prelims
Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups
AIPMT 2010 Prelims
One of the free-living, anaerobic nitrogen-fixer is
AIPMT 2010 Prelims
Virus envelope is known as
AIPMT 2010 Prelims
Single-celled eukaryotes are included in
AIPMT 2010 Prelims
Oxygenic photosynthesis occurs in
AIPMT 2009
T.O. Diener discovered a
AIPMT 2009
Which of the following is a symbiotic nitrogen fixer?
AIPMT 2009
Which one is the wrong pairing for the disease and its causal organism?
AIPMT 2009
Phylogenetic system of classification is based on
AIPMT 2009
In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), wh...
AIPMT 2008
Thermococcus, Methanococcus and Methanobacterium exemplify
AIPMT 2008
Bacterial leaf blight of rice is caused by a species
AIPMT 2008
Which pair of the following belongs to basidiomycetes?
AIPMT 2007
Which one of the following statements about mycoplasma is wrong?
AIPMT 2007
Which one of the following is a slime mould?
AIPMT 2007
Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread? A. ...
AIPMT 2006
Curing of tea leaves is brought about by the activity of
AIPMT 2006
There exists a close association between the alga and the fungus within a lichen. The fungus
AIPMT 2005
Basophilic prokaryotes
AIPMT 2005
For retting of jute the fermenting microbe used is
AIPMT 2005
All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that...
AIPMT 2005
Lichens are well known combination of an alga and a fungus where fungus has
AIPMT 2004
During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and
AIPMT 2004
A free living nitrogen-fixing cyanobacterium which can also symbiotic association with the water ferm Azolla is
AIPMT 2004
Phenetic classification of organisms is based on
AIPMT 2004
Viruses that infect bacteria multiply and cause their lysis, are called
AIPMT 2004
Which of the following statements is not true for retroviruses?
AIPMT 2004
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classificat...
AIPMT 2003
Viruses are no more ''alive'' than isolated chromosomes because
AIPMT 2003
Which one of the following statements about viruses is correct?
AIPMT 2003
Tobacco mosaic virus is a tubular filament of size
AIPMT 2003
Chromosomes in a bactertial cell can be 1 $$-$$ 3 in number and
AIPMT 2003
Phenetic classification of organisms is based on
AIPMT 2003
Some bacteria are able to grow in streptomycin containing medium due to
AIPMT 2002
In bacteria, plasmid is
AIPMT 2002
Which fungal disease spreads by seed and flowers?
AIPMT 2002
Choose the correct sequence of stages of growth curve for bacteria.
AIPMT 2002
Which of the following secretes toxins during storage conditions of crop plants?
AIPMT 2002
In five kingdom system, the main basis of classification is
AIPMT 2002
Which statement is correct for bacterial transduction?
AIPMT 2002
The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?
AIPMT 2002
Difference in gram positive and gram negative bacteria is due to
AIPMT 2001
Adhesive pad of fungi penetrate the host with the help of
AIPMT 2001
What is true for archaebacteria?
AIPMT 2001
What is true for cyanobacteria ?
AIPMT 2001
Cauliflower mosaic virus conrains
AIPMT 2001
Black rust of wheat is caused by
AIPMT 2000

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