RGUHS MD Biochemistry: most-asked theory questions
Across 30 exam sittings recorded in this AnswerBank (2006–2026), these topics appeared in at least two distinct sittings. Use the list to guide your revision, then explore the full model answers.
A sitting here means the year and month recorded in the bank. A topic counts once in that sitting, even if it appeared in several questions or papers. Topics are ranked by sittings, then most recent year, then name. Past recurrence describes these papers; it does not predict the next exam.
Repeated theory topics
Each entry includes its exam sittings, papers and one original question from the bank.
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Tumour markers
asked in 11 of 30 sittings
Sittings: 2006 April · 2006 October · 2007 September · 2009 October · 2010 May · 2017 November · 2019 May · 2019 November · 2020 July · 2023 July · 2025 January
Papers: Paper III · Paper IV
Example question
Tumor markers and associated diseases
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Point-of-care testing
asked in 9 of 30 sittings
Sittings: 2008 October · 2010 October · 2017 November · 2018 November · 2019 May · 2020 July · 2020 November · 2024 June · 2026 April
Papers: Paper I · Paper IV
Example question
Point of care testing
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Blotting techniques
asked in 8 of 30 sittings
Sittings: 2009 October · 2010 October · 2017 November · 2018 November · 2019 May · 2021 July · 2025 September · 2026 April
Papers: Paper I · Paper IV
Example question
Types and principles of blotting techniques
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Sources, absorption and metabolism of iron
asked in 8 of 30 sittings
Sittings: 2006 April · 2008 April · 2011 May · 2016 November · 2017 November · 2021 August · 2021 November · 2024 June
Papers: Paper III
Example question
Sources, absorption and metabolism of iron
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Quality control
asked in 7 of 30 sittings
Sittings: 2006 April · 2006 October · 2009 May · 2010 May · 2021 August · 2023 July · 2024 June
Papers: Paper IV
Example question
Write the quality control programs in clinical chemistry laboratories.
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Protein-energy malnutrition
asked in 7 of 30 sittings
Sittings: 2006 April · 2008 April · 2010 May · 2018 May · 2018 November · 2021 August · 2021 November
Papers: Paper III
Example question
Protein energy malnutrition.
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ELISA
asked in 6 of 30 sittings
Sittings: 2009 May · 2017 November · 2019 November · 2023 July · 2024 June · 2025 September
Papers: Paper I
Example question
Explain in detail about the technique ELISA.
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Enzyme inhibition
asked in 6 of 30 sittings
Sittings: 2006 October · 2010 May · 2018 May · 2021 August · 2023 July · 2025 September
Papers: Paper III
Example question
Competitive inhibition.
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Immunoglobulins
asked in 6 of 30 sittings
Sittings: 2006 April · 2009 October · 2011 May · 2018 November · 2024 June · 2025 January
Papers: Paper I · Paper III
Example question
Name the types of Immunoglobulins. Write in detail the structure and functions of immunoglobulins.
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Isoenzymes
asked in 6 of 30 sittings
Sittings: 2006 April · 2007 May · 2007 September · 2010 October · 2021 November · 2025 May
Papers: Paper III · Paper IV
Example question
Iso enzymes
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Acute phase proteins
asked in 5 of 30 sittings
Sittings: 2018 May · 2019 May · 2021 July · 2023 July · 2026 April
Papers: Paper I
Example question
Acute phase proteins in disease
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Glycogen storage disorders
asked in 5 of 30 sittings
Sittings: 2011 May · 2017 November · 2019 November · 2020 November · 2026 April
Papers: Paper II · Paper IV
Example question
Glycogen storage disorders
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HbA1c and clinical significance
asked in 5 of 30 sittings
Sittings: 2009 May · 2011 May · 2016 November · 2019 May · 2026 April
Papers: Paper I · Paper II · Paper IV
Example question
HbA1C and its clinical importance
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Pre-analytical variables
asked in 5 of 30 sittings
Sittings: 2017 November · 2019 May · 2020 November · 2025 January · 2026 April
Papers: Paper I · Paper IV
Example question
Non controllable pre-analytical variables
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Purine catabolism and its disorders
asked in 5 of 30 sittings
Sittings: 2006 April · 2009 May · 2010 October · 2024 June · 2026 April
Papers: Paper II
Example question
Catabolism and disorders of purine metabolism
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Flame photometry
asked in 5 of 30 sittings
Sittings: 2018 May · 2019 May · 2019 November · 2023 July · 2025 May
Papers: Paper I
Example question
Write briefly on principle, procedures and applications of Flame Photometry
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Glucose transporters
asked in 5 of 30 sittings
Sittings: 2008 October · 2010 May · 2017 November · 2018 November · 2025 May
Papers: Paper I · Paper II · Paper III
Example question
GLUT
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Ion-selective electrodes
asked in 5 of 30 sittings
Sittings: 2008 October · 2009 October · 2017 November · 2024 June · 2025 September
Papers: Paper I
Example question
Ion selective electrodes and their applications in Medicine.
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Metabolic syndrome
asked in 5 of 30 sittings
Sittings: 2008 October · 2010 May · 2017 November · 2025 June · 2025 October
Papers: Paper III · Paper IV
Example question
Biochemical derangements in metabolic syndrome
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Nitric oxide
asked in 5 of 30 sittings
Sittings: 2010 May · 2010 October · 2018 May · 2018 November · 2025 May
Papers: Paper II · Paper III
Example question
Synthesis and functions of nitric oxide
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Oncogenes
asked in 5 of 30 sittings
Sittings: 2009 May · 2010 October · 2018 November · 2020 July · 2025 January
Papers: Paper III · Paper IV
Example question
Oncogenes
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Porphyrias
asked in 5 of 30 sittings
Sittings: 2006 October · 2018 May · 2020 July · 2023 July · 2025 October
Papers: Paper II · Paper IV
Example question
Write in detail about hepatic porphyrias
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Radioisotopes — detection, measurement and applications
asked in 5 of 30 sittings
Sittings: 2007 September · 2010 May · 2018 May · 2020 November · 2025 May
Papers: Paper I
Example question
Write in detail the detection and measurement of radioactive Isotopes. Add a note on their applications in Biochemistry.
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Respiratory chain
asked in 5 of 30 sittings
Sittings: 2010 May · 2017 November · 2018 May · 2024 June · 2025 September
Papers: Paper I · Paper II
Example question
Components, functioning and inhibition of respiratory chain
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Polymerase chain reaction
asked in 5 of 30 sittings
Sittings: 2006 April · 2010 May · 2016 November · 2017 November · 2023 July
Papers: Paper I · Paper II
Example question
Polymerase chain reaction
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