Natural Products

ABC26OR0514 · The correct sequence of the amino acids present in the tripeptide given below is · 2000-2022

ABC26OR0515 · The major product of the following reaction is 2. HCl, H2O · 2000-2022

ABC26OR0822 · The complementary strand for the following single strand of DNA is 5' ← A-T-G-C-T → 3' · 2005-2022

ABC26OR0516 · Amongst the following, the structure of guanosine is · 2000-2022

ABC26OR0823 · In the following reaction of (D)-Glucose, a product P is formed. (D)-Glucose [2. H2O2, Fe2(SO4)3]1. Br2/H2O P Among the following… · 2005-2022

ABC26OR0517 · The compound given below is a (Hirsutene) · 2000-2022

ABC26OR0825 · Based on the information given below, the isoelectric point (pI) of lysine is ____. (Round off to one decimal place) · 2005-2022

ABC26OR0519 · A tetrapeptide, made up of natural amino acids, has alanine as the N-terminal residue which is coupled to a chiral amino acid. Upon… · 2000-2022

ABC26OR0826 · The amino acid R configuration is · 2005-2022

ABC26OR0520 · Major product formed in the given reaction is: · 2000-2022

ABC26OR0827 · The nucleobase NOT found DNA is · 2005-2022

ABC26OR0521 · A correct example of a nucleotide is: · 2000-2022

ABC26OR0522 · A tripeptide on treatment with PhNCS (pH = 8.0) followed by heating with dilute HCl afforded a cyclic compound M and a dipeptide. The… · 2000-2022

ABC26OR0829 · The functional group (s) in reducing sugar that tests positive with Tollen's reagent is (are) · 2005-2022 self-practice

ABC26OR0074 · The major product formed on nitration (HNO3/H2SO4) of uridine followed by reduction with tin and HCl is: · JUNE 2011

ABC26OR0078 · Degradation of penicillin G gives penicillamine that can utilize nitrogen, oxygen or sulfur atoms as donors to bind with lead (II), mercury… · DEC 2012

ABC26OR0079 · The biosynthetic precursor of cadinene is: Cadinene · DEC 2012

ABC26OR0089 · alpha -Pinene on reaction with dilute alkaline KMnO4 produces a diol, which on further oxidation with chromium trioxide gives product A… · JUNE 2013

ABC26OR0090 · The major product formed in the reaction of guanosine with one equivalent of methyl iodide is · JUNE 2013

ABC26OR0094 · The major product B formed in the following reaction sequence, and overall yield of its formation are (S)-glutamic acid 180 °C, 60% A 80% B · DEC 2013

ABC26OR0098 · The biosynthetic precursor of abietic acid is · DEC 2014

ABC26OR0101 · Antitubercular drug(s) among the following is (are) · JUNE 2015

ABC26OR0103 · The correct match for the compounds in column A with the description in column B is Column A (P) (Q) (R) Column B (X) Oil of Wintergreen… · DEC 2015

ABC26OR1104 · At pH 10, tryptophan exists as · JUNE 2016

ABC26OR0106 · Correct characteristics of the functional groups of adenine in DNA base pair are · DEC 2016

ABC26OR0108 · The correct match of natural products in Column-I with their biosynthetic precursors in Column-II is Column-I A. B. Column-II I. L-Lysine… · JUNE 2017

ABC26OR0112 · The structure of ribonucleoside uridine is · DEC 2017

ABC26OR0116 · The keto-hexose among the following is · DEC 2018

ABC26OR0117 · Reaction of deoxymonosaccharide A with 2 equivalents of HIO4 affords propanedial, formic acid and formaldehyde. The structure of A is · JUNE 2019

ABC26OR0119 · The natural product that gives signal at delta 218 ppm in its 13 C NMR spectrum · DEC 2019

ABC26OR0085 · Match the following drugs with their medicinal activity · JUNE 2013

ABC26OR0086 · The biosynthetic precursor for the steroids is · JUNE 2013

ABC26OR0092 · For estrone, among the statements A-C, the correct ones are · DEC 2013

ABC26OR0097 · Atorvastatin (structure given below) is a · JUNE 2014

ABC26OR0107 · The correct match for the following is · DEC 2016

ABC26OR0087 · Number of isoprene units present in lupeol is · JUNE 2013