CSIR NET Weekend Booster Quiz 2024 | Life Science | 31 March
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Question 1
The Vmax of several enzyme from the pectoral muscles (chest muscles used for flying) of pigeon and pheasant are shown below. The indication of importance of various ATP producing pathways is the Vmax of certain enzymes of this pathway.
What can be concluded from data given below?
A) β-oxidation predominates in pigeon while in pheasant anaerobic glycolysis of glycogen predominates?
B) pigeon muscle would consume more 02?
C) pigeon is a long-distance flyer as lactate building in pheasant limits long distance flights
Question 2
A recessive inherited disease is expressed only in individuals of blood group O and not expressed in blood groups A, B or AB. Alleles controlling the disease and blood group are independently inherited. A normal woman with blood group A and her normal husband with blood group B already had one child with the disease. The woman is pregnant for second time. What is the probability that the second child will also have the disease?
Question 3
Several fusion constructs were developed to purify heterologous protein in E . coli. The table below lists fusion partners and ligands.
Which one of the following is the correct match of the fusion partner with the ligand?
Question 4
The cytoskeleton is a cellular scaffolding or skeleton contained within a cell's cytoplasm. Which of the following is CORRECT?
Question 5
Major histocompatibility complex (MHC) molecules are encoded by a cluster of genes called MHC locus. There are several reasons why an MHC molecule on the surface of a cell is important. Which one of the following reasons is INCORRECT?
Question 6
An antibody binds to another protein with an equilibrium constant, K of 5 x 109 M -1.When it binds to a second, related protein, it forms three fewer hydrogen bonds, reducing its binding affinity by 2.8 kcal/mole. What is the K for its binding to the second protein?( Free-energy change is related to the equilibrium constant by the equation ΔG0 = -2.3 RT log K, where R is 1.98 x 10-3 kcal /(mole K ) and T is 310 K
Question 7
The terms expressing some of the developmental events or specific body structures are given in column X and the names of animals that are associated with them in column Y:
The correct match of the terms in column X with the name of animals in column Y is:
Question 8
Molecular polymorphic markers are already known with respect to tobacco mosaic virus (TMV) resistance in tobacco. Among these, which marker system you will select that will be simple, economic and less time consuming:
Question 9
In X-linked inheritance, when a red-eyed female Drosophila is crossed with white-eyed male Drosophila, the resulting F1 progenies are all red-eyed. What is the probability of white-eye male (F2 generation) drosophila when a red-eyed male is crossed with a red-eyed female from the F1 generation?
Question 10
Which of the following does NOT include in the biotic component of the environment?
