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Exam Details

LIFE SCIENCE PART C (JUNE 2019) 2019

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Questions 75
Duration 180 mins
Package CSIR NET & SET - Previous Year Papers

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Hard 39 52%
Medium 36 48%

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Multiple Choices 75 100%

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1
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
Equal volumes of pH 4.0 and pH 10.0 solutions are mixed. What will be the approximate pH of the final solution?
A
7
B
5
C
6
D
4
2
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
The inborn error of amino acid metabolism, alkaptonuria, is due to the lack of one of the following enzymes:
A
Fumaryl acetoacetate hydrolase
B
a-ketoacid decarboxylase
C
Homogentisate oxidase
D
p-hydroxyphenylpyruvate dehydroxylase
3
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
The structure of protein with 100 residues was determined by X-ray analysis at atomic resolution and NMR spectroscopy. The following observations are possible.
A) The dihedral angles determined from the X-ray structure and NMR will be identical.
B) The dihedral angles determined from the X-ray structure will be more accurate.
C) b-turns can be determined only by NMR.
D) b-sheets can be more accurately determined from the X-ray structure.
Indicates the combination with ALL correct answers
A
A and C
B
B and D
C
A and D
D
B and C
4
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
The different arms in the tRNA structure are shown in Column A. The specific signatures associated with the different arms as shown in Column B.
Choose the correct matches from the following:
A
A - (ii); B – (iv); C - (i); D-(iii)
B
A – (i); B – (iii); C – (iv); D-(ii)
C
A – (iv); B – (i); C – (ii); D-(iii)
D
A – (ii); B – (iii); C – (iv); D-(i)
5
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
Some coenzymes that serve as transient carriers of specific chemical groups are shown belowChoose the combination with all correct matches.
A
A – (i); B – (ii); C – (iii); D-(iv)
B
A – (ii); B – (i); C – (iv); D-(iii)
C
A – (iv); B – (iii); C – (i); D-(ii)
D
A – (iii); B – (iv); C – (ii); D-(i)
6
2019 · Unclassified
LIFE SCIENCE PART C (JUNE 2019) 2019
Thermodynamics of protein folding is depicted as a free energy funnel below:
Given below are regions in the diagram (Column X) and their representation (Column Y)
Choose the option that shows all correct matches
A
A – (ii); B – (iii); C – (iv); D-(i)
B
A – (iii); B – (iv); C – (ii); D-(i)
C
A – (iv); B – (i); C – (ii); D-(iii)
D
A – (i); B – (ii); C – (iii); D-(iv)