Author: admin

Q.11 Watson and Crick base pairing is ? 1. Hydrogen bonding in a single DNA strand. 2. Non-covalent hydrogen bonding between two DNA strands. 3. Van der Waal’s forces between […]

Q.10 A phosphodiester bond fonns : 1. Polypeptides 2. Polynucleotides 3. Lipoproteins 4. Oligomers of carbohydrates and lipids Phosphodiester bonds form the backbone of polynucleotides like DNA and RNA by […]

Q.9 Find the wrong one out – I. Nucleotide minus phosphoryl group is nucleoside 2. Purines and pyrimidines are double and single ring compounds. respectively. 3. Purines and pyrimidines are […]

Q.8 Which of the following statement is incorrect ? I. Ramachandran plot is related to protein structure. 2. Watson and Crick discovered the stmcture of DNA. proteins and RNA 3. […]

Q.7 If molecular weight of a protein is gm per mole. would be the number of amino acids in the protein. assuming mean molecular weight of an amino acid to […]

Q.6 One of the following is not related to enzyme linked immunosorbent assay (ELISA) l. Monoclonal and Polyclonal antibodies 2. Antigen and Coupling enzyme 3, Electrophoresis 4. Secondaty antibody Electrophoresis […]

Q.5 In spectrophotometric measurement of proteins. which of the amino acids contribute the maximum? 1. Tyrosine. Phenylalanine, Tryptophan 2. Tyrosine, Serine, Threonine 3. Phenylalanine, Alanine. Leucine 4. Histidine. Proline, Twptophan […]

Q.4 Size exclusion chromatography or gel filtration chromatography separates proteins based on : I. Stokes radii 2. Molecular weight and shape 3. Both 1 and 2 4. Colour Size exclusion […]

Q.3 Mitochondria is involved in – l. Oxidative phosphorylation and Beta oxidation 2. Independent protein synthesis 3. Both (1) and (2) 4. Digestion of lipids and proteins Mitochondria are primarily […]

Q.2 Which of the following cellular organelle is called as digestive tract of the cell ? I. Golgi apparatus 2. Peroxisomes 3. Nucleus 4. Lysosomes Lysosomes are known as the […]