Medical Mcqs

In Hartnup’s disease _______ is excreted in the urine?

• (A)  Ornithine
• (B)  Glutamine
• (C)  Tryptophan
• (D)  Phenylalanine

Answer

Submitted By :Ali Uppal

Thyroxine and catecholamines are derived from_____________?

• (A)  Tyrosine
• (B)  Tryptophan
• (C)  Alanine
• (D)  Leucine

Answer

Submitted By :Ali Uppal

Which of the following is not a post transcriptional modification of RNA ?

• (A)  Splicing
• (B)  5′ capping
• (C)  3′ polyadenylation
• (D)  Glycosylation

Answer

Submitted By :Ali Uppal

Synthesis of protein occurs on__________________?

• (A)  Mitochondria
• (B)  Poly ribosomes
• (C)  Nucleus
• (D)  Golgi bodies

Answer

Submitted By :Ali Uppal

Which of the following amino acids is quickly converted to tyrosine ?

• (A)  Arginine
• (B)  Glycine
• (C)  Phenylalanine
• (D)  Leucine

Answer

Submitted By :Ali Uppal

ALbumin is synthesized by_____________?

• (A)  Liver
• (B)  Kidney
• (C)  Muscle
• (D)  Spleen

Answer

Submitted By :Ali Uppal

Histidine is converted to histamine by_____________?

• (A)  Transamination
• (B)  Hydroxylation
• (C)  Decarboxylation
• (D)  Reduction

Answer

Submitted By :Ali Uppal

A mutation that converts an amino acid codon to a stop codon is a_____________?

• (A)  Nonsense mutation
• (B)  Transversion
• (C)  Silent mutation
• (D)  Frame shift mutation

Answer

Submitted By :Ali Uppal

Decarboxylation of which of the following amino acids results in formation of a vasodilator ?

• (A)  Valine
• (B)  Arginine
• (C)  Histidine
• (D)  Glutamic acid

Answer

Submitted By :Ali Uppal

A small Ca+2 binding protein that modifies the activity of many enzymes and other proteins in response to changes of Ca+2 concentration is known as______________?

• (A)  Cycline
• (B)  Calmodulin
• (C)  Collagen
• (D)  Kinesin

Answer

Submitted By :Ali Uppal