Biology Questions

Which one of the following statements is not true about the universal rules of binomial nomenclature?

Which of the following statements are correct?

The main function of bulliform cells in grasses is:

Which one of the following is the site for active ribosomal RNA synthesis?

Match List I with List II. List I A. Marginal B. Axile C. Parietal D. Basal List II I. Mustard II. Pea III. Marigold IV. Lemon Choose the correct answer from the options given below.

Which of the following statements are correct with reference to packaging of DNA helix?

In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed?

Which of the following statements are correct regarding amino acids?

Match List I with List II. List I A. Productivity B. Net primary productivity C. Gross primary productivity D. Secondary productivity List II I. Gross primary production minus respiratory losses II. Rate of formation of new organic matter by consumer

Heterophyllous development in response to environment is an example of which of the following phenomena?

Which of the following is an in situ conservation method?

Which one of the following types of pollination brings genetically different types of pollen grains to the stigma?

Which of the following statements are correct with reference to a transcription unit?

Arrange the following steps of DNA fingerprinting in a correct sequence. A. Isolation of DNA and its digestion by restriction endonucleases B. Hybridisation using a labelled VNTR probe C. Transferring of separated DNA fragments to synthetic membranes

The EU Quartet of biodiversity loss includes which of the following?

The main criteria used for Five Kingdom Classification proposed by R.H. Whittaker (1969) included:

Match List I with List II. List I A. Decomposition B. Detritus C. Mineralisation D. Humification List II I. Accumulation of dark coloured amorphous colloidal substance II. Release of inorganic nutrients by the activity of microbes III. Breaking down

Which one of the following is a triploid cell?

Which of the following floral formula is the correct floral formula of Solanaceae family?

In angiosperms, root hairs arise from which one of the following regions of the root?

Match List I with List II. List I A. Conjunctive tissue B. Casparian strips C. Subsidiary cells D. Starch sheath List II I. Specialised cells in the vicinity of guard cells II. Endodermal cells rich in starch III. Tissue between xylem and phloem IV.

Arrange the following steps of somatic hybridisation in a correct sequence. A. Digestion of cell walls B. Isolation of naked protoplasts C. Fusion of protoplasts to get hybrid protoplast D. Isolation of single cells from two different varieties of pl

Which one of the following is not a characteristic of plant cells in the phase of elongation?

ΔG° (kJ mol⁻¹) + 1450, + 1200, + 980 of energy. The respiratory quotient (RQ) of a biomolecule used for respiration, as per the above equation would be:

Match List I with List II. List I A. G₁ phase B. S phase C. G₂ phase D. M phase List II I. Actual cell division occurs II. Cells metabolically active and continuously grows but do not replicate DNA III. Synthesis of DNA occurs and amount of DNA per c

In the lac operon, the z gene codes for:

Which of the following statements are not true regarding restriction endonucleases?

Arrange the following in the correct developmental sequence related to microsporogenesis: A. Microspore tetrads B. Sporogenous tissue C. Pollen grains D. Pollen mother cells Choose the correct answer from the options given below.

The enzyme required for carboxylation in the Calvin cycle is:

Alphahelix is found in which level of protein structure?

Since the origin and diversification of life on Earth, there have been five episodes of mass extinction of species. How is the sixth extinction, which is in progress, different from the previous episodes?

In racemose inflorescence ________.

Match List I with List II. List I A. 2,4-D B. GA₃ C. Kinetin D. ABA List II I. Brewing industry II. Stimulation of stomatal closure III. Artificial bolting IV. Nutrition Choose the correct answer from the options given below.

Which of the following statements are true with reference to the seed determination in honeybees?

The bioprospecting, genetic and species diversity for products of economic importance is called:

Match List I with List II. List I A. Genetically modified organism B. Thermostable DNA polymerase C. Plasmid D. pBR322 List II I. Agrobacterium tumefaciens II. Bt cotton III. Thermus aquaticus IV. Escherichia coli Choose the correct answer from the o