Author: Neetu Pathak

AIIMS PG – 84868

Question

Which of the following statements about tRNA molecules is false?

A. The enzyme that attaches an amino acid to a tRNA is aminoacyl-tRNA synthetase

B. Although composed of a single strand of RNA, each molecule contains several short, double-helical regions

C. The amino acid attachment is always to  3′ end of the molecule.

D. There is at least one tRNA for each of the 2 amino acids

 

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Aiims PG – 84866

Question

Restriction endonuclease cuts at

A.AAGGAA

B.AAGAAG

C.AAGTTC

D.AAGCTT

 

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Aiims PG – 84860

Question

The following enzyme is responsible for thirst mechanism during dehydration?

A. ADH

B. Noradrenaline

C. Epinephrine

D. Dopamine

 

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Aiims PG – 84866

Question

Restriction endonuclease cuts at

A. AAGGAA

B. AAGAAG

C. AAGTTC

D. AAGCTT

 

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Aiims PG – 84863

Question

All are true about CRISPR cas 9 Except

A. gRNA ensures that the Cas9 enzyme cuts at the right point in the genome

B. NHEJ repair  & HDR pathway

C. C9  enzyme is used in CRISPR gene editing

D. All of these

 

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Aiims pg – 84857

Question

Which of the following rightly describes the mechanism of “Pressor Escape” in SIADH?

A. Characterized by sudden increase in urine volume with decrease in urine osmolality independent of circulating vasopressin levels. 

B. Characterized by sudden increase in urine volume with decrease in urine osmolality dependent of circulating vasopressin levels. 

C.Characterized by sudden decrease in urine volume with increase in urine osmolality independent of circulating vasopressin levels. 

D. Characterized by sudden decrease in urine volume with increase in urine osmolality dependent of circulating vasopressin levels.=

 

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