Mcq Subject: Biochemistry
One of the following groups of enzymes does not exhibit stereospecificity
A. Oxidoreductases
B. Isomerases
C. Lyases
D. Transferases
View DescriptionThe enzyme used for the mapping of hypersensitive sites in recombinant DNA research is?
A. DNA ligase
B. DNA polymerase I
C. DNase I
D. Polynucleotide kinase
View DescriptionA 24-year-old accountant complains of a white discharge from his breasts. He is most likely experiencing which one of the following?
A. A tumor of the posterior pituitary that could be surgically removed
B. Excessive production of OT in the hypothalamus
C. Deficient testosterone receptors in the mammary glands
D. A prolactinoma that would decrease its secretory activity in response to bromocriptine (an analog of dopamine)
View DescriptionAll are true about chaperones except
A. Cause folding of proteins
B. Are lipid in nature
C. May have ATPase activity
D. Include heat shock proteins
View DescriptionInhibition of glycolysis by increased supply of 02 is called ?
A. Crabtree effect
B. Pasteur effect
C. Lewis effect
D. None
View DescriptionDNA fingerprinting is based on possessing in DNA of –
A. Constant Tandem Repeat
B. Variable Number Tandem Repeats (VNTR)
C. Non-repeatative sequence
D. Exon
View DescriptionGlutamine replaced by valine in sickle cell anaemia is characterized by
A. Non sense mutation of beta chain
B. Missense mutation of beta chain
C. Degradation of beta chain
D. Deletion of beta chain
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