List of top Biochemistry Questions

A young boy presents to the OPD with hypoglycemia and muscle cramps, on exertion or while playing. Then he becomes normal after resting for a while. These episodes are recurrent after a period of activity. He has decreased serum lactate and glucose levels. Which of the following diseases is he most likely to be suffering from?

A child presents with thinning of hair and scaling of the scalp. On taking further history, it is found that she consumes raw eggs in her diet regularly. The given manifestations are due to the deficiency of which of the following vitamins?

A child presents with mental retardation, bone pain, and inability to walk. On funduscopic examination, a cherry red spot is seen. There is no organomegaly. What is the most likely diagnosis?

A child presents with bone pain and hepatosplenomegaly. A trephine biopsy and aspirate show the following finding. Which of the following is the most likely enzyme deficient in this condition?

A family consumes only polished rice. Which of the following combinations of vitamin deficiency and enzymatic defect will be present in this family?

A 4-year-old child presents with easy fatigability. The mother also complains that the child has increased hunger between meals, which is relieved after food. Liver examination revealed no glycogen. The enzyme most likely deficient is?

Which of the following is seen in low insulin: glucagon ratio?

A chronic alcoholic patient presented to the casualty with confusion, ataxia, and painful eye movements. What could be the vitamin deficiency seen in this patient?

An infant is brought by his parents with complaints that his urine turns black on standing. Which of the following metabolic disorders is likely?

Which one of the following is NOT a phospholipid?

Given below are two statements
Statement I: Sequencing of DNA is much easier than RNA sequencing due to greater stability 
Statement II: The chemical method of DNA sequencing (Maxam & Gilbert) works for only single stranded DNA 
In light of the above statements, choose the correct answer from the options given below

How many molecules of acyl-CoA are produced in beta-oxidation of palmitic acid

p-gp (p-glycoprotein) is highly expressed on the

Which of the following is false about HMP shunt?

Riboflavin, chemically is:

Microcrystalline cellulose is also called as :

The phase contrast microscopy is valuable in studying living cells which are :

Blockade in ẞ-oxidation results in :

ELISA is based upon

For protein detection most commonly used probe is:

One of the following is a most commonly used protecting group for amines :

RNA molecules having intrinsic catalytic activity are called as___

In case of suppositories base, SFI stands for :

In Direct, Contact or Jet condensers, barometric leg serves one of the following functions:

Von Gierke's glycogen storage disease is due to defect of which enzyme :