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Q.5 RNA is a polymer of(A) glycosides(B) ribonucleosides(C) ribonucleotides(D) riboses RNA is a polymer of ribonucleotides. This makes option (C) the correct answer for the CSIR NET Life Sciences question. […]

Q.4 Which organelle in a eukaryotic cell is the site of electron transport chain?(A) Endoplasmic reticulum(B) Golgi apparatus(C) Mitochondrion(D) Peroxisome Mitochondrion (C) is the correct answer. The electron transport chain (ETC) […]

Q.3 The most abundant type of RNA in a metabolically active mammalian cell is (A) mRNA (B) rRNA (C) snoRNA (D) tRNA The most abundant RNA in metabolically active mammalian […]

Q.2 In DNA replication, the Okazaki fragments are joined by (A) DNA helicase (B) DNA ligase (C) DNA polymerase (D) DNA primase DNA ligase joins Okazaki fragments during DNA replication. This […]

Q.1 Which one of the following is a simple tissue system in plants? (A) Epidermis (B) Parenchyma (C) Phloem (D) Xylem​ Introduction In plant anatomy, exam questions often ask which […]

Q.59 The vector, shown in the figure, has promoter and RBS sequences in the 300 bp regionbetween the restriction sites for enzymes X and Y. There are no other sites […]

Q.58 A rare genetic disorder resulting from homozygosity for a recessive allele (r) occurs in 2out of every 10,000 individuals in a population. Assuming that (i) the disorder is notlethal, […]

Q.57 A cDNA was synthesized from the mRNA of a eukaryotic gene. After cloning andsequence analysis, the double–stranded cDNA of 614 bp revealed 125 bp 5′–UTR and 120bp 3′–UTR. The […]

Q.56 In a reaction A + B → C, the initial rate of formation of C at 25 °C was measured fordifferent initial concentrations of A and B as given. […]