Biological Classification · Biology · NEET

House fly belongs to _____ family.

'X' and 'Y' are the components of Binomial nomenclature. This naming system was proposed by 'Z' :

Mad cow disease in cattle and Cr Jacob disease in humans are due to infection by ______.

Given below are two statements: Statement I : Mycoplasma can pass through less than 1 micron filter size. Statement II : Mycoplasma are bacteria with ...

Which of the following is a correct statement?

Which of the following statements is correct?

Which of the following is correct about viroids?

Which of the following statements is incorrect?

Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus :

Which of the following statement is incorrect?

Which among the following is not a prokaryote?

Select the wrong statement.

Oxygen is not produced during photosynthesis by

After karyogamy followed by meiosis, spores are produced exogenously in

Ciliates differ from all other protozoans in

Which of the following organisms are known as chief producers in the oceans?

DNA replication in bacteria occurs

Viroids differ from viruses in having

Which of the following components provides sticky character to the bacterial cell?

Which of the following are found in extreme saline conditions?

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survise w...

Which one of the following is wrong for fungi?

Select the wrong statement.

Methanogens belong to

One of the major components of cell wall of most fungi is

Which of the following statements is wrong for viroids?

Which one of the following statements is wrong?

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the Kingdom

Select the wrong statement.

Which one is a wrong statement?

In which group of organisms the cell walls form two thin overlapping shells which fit together?

Pick up the wrong statement.

The structures that help some bacteria to attach to rocks and/or host tissues are

Choose the wrong statement.

Cell wall is absent in

The imperfect fungi which are decomposers of litter and help in mineral cycling belong to

Which one of the following matches is correct? .tg {border-collapse:collapse;border-spacing:0;width:100%} .tg td{font-family:Arial, sans-serif;font-...

True nucleus is absent in

Which of the following shows coiled RNA strand and capsomeres?

Five kingdom system of classification suggested by R.H. Whittaker is not based on

Archaebacteria differ from eubacteria in

Viruses have

The motile bacteria are able to move by

Which structures perform the function of mitochondria in bacteria?

Anoxygenic photosynthesis is characteristic of

Which one of the following is true for fungi?

Why is a capsule advantageous to a bacterium?

Which of the following are likely to be present in deep sea water?

Pigment containing membranous extensions in some cyanobacteria are

In the five kingdom classification, Chlamydomonas and Chlorella have been included in

Maximum nutritional diversity is found in the group

Which statement is wrong for viruses?

Nuclear membrane is absent in

The cyanobacteria are also referred to as

The most abundant prokaryotes helpful to humans in making curd ftom milk and in production of antibiotics are the ones categorised as

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

Which one of the following microbes forms symbiotic association with plants and helps them in their nutrition?

The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom of organisms as that of

Which one of the following also acts as a catalyst in a bacterial cell?

Which one of the following organisms is not an eukaryotic cells?

In eubacteria, a cellular component that resembles eukaryotic cell is

Which one of the following is incorrectly matched?

Black (stem) rust of wheat is caused by

Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms. (i)  Methanogens are archaebacte...

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? ...

Single-celled eukaryotes are included in

Virus envelope is known as

One of the free-living, anaerobic nitrogen-fixer is

Some hyperthermophilic organisms that grow in highly acidic (pH 2) habitats belong to the two groups

Membrane-bound organelles are absent in

Phylogenetic system of classification is based on

Which one is the wrong pairing for the disease and its causal organism?

Which of the following is a symbiotic nitrogen fixer?

T.O. Diener discovered a

Oxygenic photosynthesis occurs in

Bacterial leaf blight of rice is caused by a species

Thermococcus, Methanococcus and Methanobacterium exemplify

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following state...

Which one of the following is a slime mould?

Which one of the following statements about mycoplasma is wrong?

Which pair of the following belongs to basidiomycetes?

Curing of tea leaves is brought about by the activity of

Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread? A.   Temperature of abo...

All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are correct except that Frankia

For retting of jute the fermenting microbe used is

Basophilic prokaryotes

There exists a close association between the alga and the fungus within a lichen. The fungus

Which of the following statements is not true for retroviruses?

Viruses that infect bacteria multiply and cause their lysis, are called

Phenetic classification of organisms is based on

A free living nitrogen-fixing cyanobacterium which can also symbiotic association with the water ferm Azolla is

During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and

Lichens are well known combination of an alga and a fungus where fungus has

Phenetic classification of organisms is based on

Chromosomes in a bactertial cell can be 1 $$-$$ 3 in number and

Tobacco mosaic virus is a tubular filament of size

Which one of the following statements about viruses is correct?

Viruses are no more ''alive'' than isolated chromosomes because

In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used?

The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?

Which statement is correct for bacterial transduction?

In five kingdom system, the main basis of classification is

Which of the following secretes toxins during storage conditions of crop plants?

Choose the correct sequence of stages of growth curve for bacteria.

Which fungal disease spreads by seed and flowers?

In bacteria, plasmid is

Some bacteria are able to grow in streptomycin containing medium due to

Cauliflower mosaic virus conrains

What is true for cyanobacteria ?

What is true for archaebacteria?

Adhesive pad of fungi penetrate the host with the help of

Difference in gram positive and gram negative bacteria is due to

Black rust of wheat is caused by