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Protein Engineering
Protein Engineering Interview
Quiz 1
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Q.1
The pH at which an amino acid has no net charge on it is known as its isoelectric point (pI).
a) False
b) True
Q.2
Find the odd one out.
a) Alanine
b) Aspartic acid
c) Serine
d) Glycine
Q.3
______ stereochemical configuration of amino acids is present in proteins.
a) Only D
b) Both D and L
c) Either D or L
d) Only L
Q.4
The bioluminescent jellyfish Aequorea victoria, has a protein called Green Fluorescent Protein (GFP) that fluoresces with a peak wavelength of ________, under UV or blue light radiation.
a) 808 nm
b) 708 nm
c) 408 nm
d) 508 nm
Q.5
Which of the following is the correct sequence of the three consecutive amino acids present in the light-emitting group of green fluorescent protein?
a) Asp-Ser-Glu
b) Ser-Gly-Asn
c) Ser-Thr-Gly
d) Ser-Tyr-Gly
Q.6
Among the listed amino acids, which one is non-polar?
a) Lysine
b) Serine
c) Histidine
d) Glycine
Q.7
Find the odd one out.
a) Alanine
b) Valine
c) Leucine
d) Serine
Q.8
______ is also known as ‘helix breaker’.
a) Valine
b) Serine
c) Methionine
d) Proline
Q.9
Glycine is the only amino acid that is optically inactive.
a) False
b) True
Q.10
Which of the following amino acid contains benzene ring in it?
a) Glutamine
b) Threonine
c) Histidine
d) Tryptophan
Q.11
Which of the following amino acid is most commonly associated with N-linked glycosylation?
a) Arginine
b) Lysine
c) Aspartic acid
d) Asparagine
Q.12
_____ is a sulfur-containing amino acid.
a) Alanine
b) Asparagine
c) Tryptophan
d) Methionine
Q.13
Which of the following amino acid is not associated with phosphorylation?
a) Tyrosine
b) Threonine
c) Serine
d) Valine
Q.14
Which of the following amino acid shows hydrophilic nature?
a) Leucine
b) Glycine
c) Valine
d) Serine
Q.15
Which of the following amino acid is known to form disulfide cross-links?
a) Glutamine
b) Valine
c) Methionine
d) Cysteine
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