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Biochemistry Question Bank
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Biochemistry Question Bank
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25 Questions

1. The proportion of the variance of a condition which can be attributable to genetic factors is the

2. A cofactor for enzyme-catalysed carboxylation reactions

3. Post transcriptional modifications of eukaryotic mRNA include which of the above

4. The structure which forms the end of chromosomes

5. The process of splicing refers to which of the above?

6. Malonyl CoA blocks uptake of fatty acids into the mitochondrion for oxidation by inhibiting ...

7. The number of phosphate groups present in a nucleoside

8. Competitive inhibition

9. Nucleosides lack a phosphate group but have a ribose sugar and nitrogenous base

10. major component of cell membranes

11. A nucleotide mutation that does not change amino acid sequence

12. In polymerase chain reaction DNA synthesis occurs in the ... direction

13. A consequence of non-dysjunction in meiosis

14. The presence of a ... around the core genetic material defines a eukaryotic cell.

15. A precursor which can be used to generate oxaloacetate to maintain concentrations of TCA cycle intermediates

16. Eukaryotic pre-mRNA undergoes

17. Ribosomes in eukaryotic cells may be associated with the ...

18. In the presence of an oxidisable substrate, the rate of oxygen consumption by tightly coupled isolated mitochondria will be increased by the addition of

19. Polymeric branched sugar(s) comprising α(1,4) glycosidic linkages and periodic α(1,6) glycosidic linkages between glucose residues

20. A disaccharide which forms a large fraction of normal carbohydrate intake

21. The chemical bond between two adjacent nucleotides in nucleic acids is an/a

22. What type of mutation in DNA is this?

23. Failure to maintain the normal level of ... in chronic liver disease can lead to peripheral oedema and collection of free fluid in the peritoneal cavity (ascites).

24. Which is the commonest aetiological agent of cirrhosis in Europe?

25. Enzyme activity needed for proofreading during DNA synthesis

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