List of top Biochemistry Questions asked in NEET (PG)

A 10-year-old patient has high total cholesterol, tendon xanthomas, and a family history of similar findings. Triglyceride levels are normal. What type of familial dyslipidemia is most likely?

A patient with orange-colored tonsils has a triglyceride level of 140 mg/dL and very low HDL cholesterol, 5 mg/dL. What is the most probable diagnosis?

A patient develops skin cancer and worsening hyperpigmentation following sun exposure. Which DNA repair pathway is most likely impaired?

A frameshift mutation from nucleotide insertion at position 4 of a 900-base mRNA is observed. What is the likely outcome?

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?