List of top Biochemistry Questions

A patient on long-term hydrochlorothiazide develops neuropathy, heart failure, and symmetrical paresthesia. Which nutrient deficiency is most likely responsible?
A patient with vitamin B12 deficiency presents with anemia, positive Romberg sign, and elevated homocysteine. Which amino acid is most likely deficient?
A patient has high phenylalanine levels despite normal phenylalanine hydroxylase. Which cofactor deficiency is most likely responsible?
A man survives 5 days without food. What is the brain's primary energy source during this prolonged fasting period?
A child presents with gum bleeding, perifollicular hemorrhages, petechiae, and recurrent fractures. Which enzyme deficiency is most likely?
In Hurler syndrome, which glycosaminoglycans accumulate and cause organ enlargement?
E. coli is grown exclusively in a medium containing \(^{15}NH_4Cl\) as the sole nitrogen source. Subsequently, the cells were shifted to a medium containing \(^{14}NH_4Cl\). The molar ratio of hybrid DNA (\(^{15}N-^{14}N\)) to light DNA (\(^{14}N-^{14}N\)) after four generations (rounded off to two decimal places) will be .......
The DNA double helix measures 0.34 nm/bp. The diameter of a nucleosome core particle is 11 nm. If the ratio of wrapped DNA length to nucleosome diameter is 4.51, the length of DNA around the nucleosome (to the nearest integer) is ...... bp.
The DNA double helix measures 0.34 nm/bp. The diameter of a nucleosome core particle is 11 nm. If the ratio of wrapped DNA length to nucleosome diameter is 4.51, the length of DNA around the nucleosome (to the nearest integer) is ...... bp.
E. coli is grown exclusively in a medium containing \(^{15}NH_4Cl\) as the sole nitrogen source. Subsequently, the cells were shifted to a medium containing \(^{14}NH_4Cl\). The molar ratio of hybrid DNA (\(^{15}N-^{14}N\)) to light DNA (\(^{14}N-^{14}N\)) after four generations (rounded off to two decimal places) will be .......
For an enzyme that follows Michaelis-Menten kinetics, a competitive inhibitor
Which one of the following DNA repair systems requires DNA glycosylases?
Zinc is essential for the function of
Which of the following is a Partial Fatty acid oxidation (pFox) inhibitor:
Aerobic dehydrogenase in biological oxidation contains:
Which one of the following diseases is caused by the deficiency of niacin:
Calculate the \( \lambda_{\text{max}} \) of the following molecule:
Which is the active form of Ganciclovir?
H1 receptor protein in humans is made up of:
Which of the following is a Partial Fatty acid oxidation (pFox) inhibitor:
Aerobic dehydrogenase in biological oxidation contains:
Which one of the following diseases is caused by the deficiency of niacin:
Calculate the λmax of the following molecule:
Calculate the λmax of the following molecule
Which is the active form of Ganciclovir?
H1 receptor protein in humans is made up of: