The activity of this plasma enzyme is responsible virtually for all plasma cholesterol esters in humans_______________? September 27, 2025 by Admin A. Lecithin cholesterol acyl transferase (LCAT) B. Pyrophospho mevalonate decarboxylase C. HMG CoA reductase D. Phospho mevalonate kinase ✅ The correct answer is option A. Lecithin cholesterol acyl transferase (LCAT).
The normal value of serum potassium level is____________? September 27, 2025 by Admin A. 2.8-3.8 meq/L B. 3.8-5 meq/L C. 5-5.8 meq/L D. 6-7.2 meq/L ✅ The correct answer is option B. 3.8-5 meq/L.
In molecular cloning, Blue White screening is used for_______________? September 27, 2025 by Admin A. To screen for recombinant vectors B. To detect gene mutations C. To identify desired chromosomal DNA insert in plasmid vectors D. To detect host DNA in situ ✅ The correct answer is option C. To identify desired chromosomal DNA insert in plasmid vectors.
Mutations are due to changes in_________________? September 27, 2025 by Admin A. DNA nucleotide sequence B. RNA nucleotide sequence C. Amino acid sequence of ribonuclease D. Cell walls ✅ The correct answer is option A. DNA nucleotide sequence.
Rhodopsin deficiency is chiefly associated with________________? September 27, 2025 by Admin A. Vitamin D deficiency B. Rickets C. Vitamin A deficiency D. Scurvy ✅ The correct answer is option C. Vitamin A deficiency.
Which vitamin is synthesized by intestinal bacteria ? September 27, 2025 by Admin A. Vit B B. Vit A C. Vit D D. Vit K ✅ The correct answer is option D. Vit K.
Vitamin D_____________? September 27, 2025 by Admin A. Absorption requires bile pigments B. Synthesis is regulated at the reaction catalyzed by 15-hydroxylase C. Deficiency on adults leads to rickets D. Along with PTH, increases calcium resorption from bone ✅ The correct answer is option D. Along with PTH, increases calcium resorption from bone.
To keep blood PH at 7.4 the HCO3 : H2CO3 ratio should be_____________? September 27, 2025 by Admin A. 20 : 1 B. 30 : 1 C. 15 : 1 D. 1 : 1 ✅ The correct answer is option A. 20 : 1.
The substance essential for transfter of fatty acids across mitochondrial membrance_____________? September 27, 2025 by Admin A. Creatine B. Creatinine C. Carnitine D. Coenzyme A ✅ The correct answer is option C. Carnitine.
The following are derived from cholesterol, EXCEPT_____________? September 27, 2025 by Admin A. Bile acids B. Steroid hormones C. Vitamin D D. Energy ✅ The correct answer is option D. Energy.