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Q86. Ichthyophis belongs to which of the following Class?(A) Mammalia(B) Reptilia(C) Amphibia(D) Aves Ichthyophis Belongs to Class Amphibia: CSIR NET Solved Question Q86 Ichthyophis is a genus of caecilians classified […]

Q85. The generation time of E. coli is 30 minutes. For an exponentially growingculture, the initial number of bacteria required to reach a number of 109 in2 hours is_________×107 (round […]

Q84. The decimal reduction time (D) for reducing 1012 spores of Clostridiumbotulinum to 1 spore at 111°C will be_______ min (in integer). The D valueis 0.2 min at 121°C. The […]

Q83. Suppose the mRNAs in a newly discovered bacteria are composed of onlytwo distinct nucleotides (as opposed to four found in all known organisms).Considering that the organism has no nucleotide […]

Q82. The genome of a bacterium encodes for 10 different surface antigens, whoseexpression can be turned ‘ON’ or ‘OFF’ randomly and independently. Thenumber of possible antigenic combinations is__________. Problem Breakdown […]

Q81. The rate of appearance of recombinant E. coli strains containing differentgenes after a mating between Hfr and F⁻ strains is shown in the graph (left).The approximate location of different genes […]

Q80. The figure shows the profiles of quantitative real–time PCR (qRT–PCR) testsfor SARS–CoV–2 conducted on the throat swab samples of three individuals(X, Y and Z). Tests were carried out under […]

Q79. Match the Immunoglobulin classes with their function Immunoglobulin Function (i) IgG (p) protects the fetus (ii) IgM (q) first antibody to be produced in response to infection (iii) IgA […]

Q78. What is the number of ATPs generated per molecule of NADH duringoxidative phosphorylation in E. coli via (i) NDH–1 and cytochrome bocomplex or (ii) the NDH–2 and cytochrome bd […]

Q77. The order of abundance of quinones (ubiquinone [UQ], menaquinone [MQ] and demethylmenaquinone [DMQ]) in E. coli growing anaerobically on fumarate is (A) UQ > DMQ > MQ (B) MQ […]