Q88. The expression of holandric genes causes which of the following genetic traitin humans?(A) Haemophilia(B) Sickle cell anaemia(C) Down’s Syndrome(D) Hypertrichosis The correct answer is (D) Hypertrichosis. Holandric genes, located exclusively […]
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Homologous Genes in Different Species
Q87. The two homologous genes occurring in different species are called(A) paralogous(B) orthologous(C) pseudologous(D) prologous The correct answer is (B) orthologous. Orthologous genes are homologous genes found in different species […]
Ichthyophis Class
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 […]
E coli Generation Time 30 Minutes
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 […]
Mastering D-Value for Clostridium botulinum
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 […]
Nucleotides Required Per Codon
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 […]
Bacterium Genome 10 Surface Antigens
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 […]
Rate of Appearance Recombinant E coli Strains Hfr F- Genes
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 […]
qRT-PCR Ct Value Profiles SARS-CoV-2
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 […]
Match Immunoglobulin Classes with Functions
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 […]


