#Q5 Which of the following bonds will be most difficult to break ?

#Q6 The solubility of NaCl is greater in water than ethanol. What physical property of the solvent governs this difference ?

Choose The Correct Option :

#Q7 The -COOH group of cellular amino acids can form which of the following bonds inside the cell ?

#Q8 Which one of the following small molecule neurotransmitters is NOT synthesized from tyrosine ?

#Q9 Which one of the following statements is correct ?

#Q10 Which statement best describes the pKa of amino groups in proteins ?

#Q11 Which one of the following options represent a series of the amino acids with the decreasing pka values of their side chain ?

#Q12 What is the net charge of the peptide Tyr-Val-Arg at pH 5.0? The pKas of alpha amino and carboxyl groups are 9.6 and 2.3, respectively. The pKas of Tyr and Arg side chains are 10.46 and 12.48, respectively

#Q13 Which one of the following pair of amino acids are glucogenic and ketogenic in nature ?

#Q15 Several proteins are modified by phosphorylation at specific amino acid residues to alter their activities. Which one of the following amino acids is NOT typically a site of phosphorylation in proteins ?

#Q16 Which among the following is the simplest method to estimate the concentration of glycerol in an aqueous solution of glycerol ?

#Q17 Chirality of DNA is due to

#Q18 DNA is not hydrolyzed by alkali whereas RNA is readily hydrolyzed. This is due to

#Q19 On sequence analysis of a double stranded DNA, the results showed the content of cytosine, C was 20%. What is the amount of A and T put together ?