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Q.60 If a plant is shifted to cold temperature, which of the following changes would take place in its membrane? (A) Ratio of unsaturated to saturated fatty acids would increase […]

Q.59 Lysine is being produced in a lab-scale reactor by a threonine auxotroph. After 2 weeks of operation it was observed that the concentration of lysine in the reactor was […]

Q.58 The length of the minimum unique stretch of DNA sequence that can be found only once in a 3 billion base pairs long genome is (A) 14 (B) 15 […]

Q.57 In a genetic cross between the genotypes WWXX and wwxx, the following phenotypic distributions were observed among the F2 progeny: WX, 562; wx, 158; Wx, 38; and wX, 42. […]

Q.56 Match the immunoglobulin class in Group I with its properties in Group II Group I                   Group II P. IgG      […]

Q.55 Match the items in Group I with Group II Group I                                      […]

Q.54 For their efficient translation, eubacterial mRNAs possess a Shine-Dalgarno sequence for its recognition by an anti-Shine-Dalgarno sequence (ASD) in the ribosomes. The correct statement is (A) ASD is present […]

Q.53 In an affine gap penalty model, if the gap opening penalty is -20, gap extension penalty is -4 and gap length is 8, the gap score is _________.   […]

Q.52 The percentage SIMILARITIES and IDENTITIES, respectively, between the two peptide sequences given below will be ______% and _____%. Peptide I : Ala-Ala-Arg-Arg-Gln-Trp-Leu-Thr-Phe-Thr-Lys-Ile-Met-Ser-Glu Peptide II: Ala-Ala-Arg-Glu-Gln-Tyr-Ile-Ser-Phe-Thr-Lys-Ile-Met-Arg-Asp (A) 80, 80 (B) […]

Q.51 In a mouse genome, the numbers of functional Vα, Jα, Vβ, Dβ, Jβ gene segments are 79, 38, 21, 2 and 11, respectively. The total number of possible combinations […]