Biochemistry - Mock Test 85

Question 841

Sanger’s reagent contains?

A) Phenylisothiocyanate B) Dansyl chloride C) 1-Fluoro-2, 4-dinitrobenzene D) Ninhydrin

---

No Details

Question 842

Electrostatic bonds can be formed between the side chains of?

A) Alanine and leucine B) Leucine and valine C) Asparate and glutamate D) Lysine and aspartate

---

No Details

Question 843

Primary structure of proteins can be determined by the use of?

A) Electrophoresis B) Chromatography C) Ninhydrin D) Sanger’s reagent

---

No Details

Question 844

A protein rich in cysteine is?

A) Collagen B) Keratin C) Haemoglobin D) Gelat

---

No Details

Question 845

An amino acid that does not take part in α helix formation is?

A) Histidine B) Tyrosine C) Proline D) Tryptophan

---

No Details

Question 846

An amino acid having a hydrophilic side chain is?

A) Alanine B) Proline C) Methionine D) Serine

---

No Details

Question 847

At a pH below the isoelectric point, an amino acid exists as?

A) Cation B) Anion C) Zwitterion D) Undissociated molecule

---

No Details

Question 848

A coagulated protein is?

A) Insoluble B) Biologically non-functional C) Unfolded D) All of the above

---

No Details

Question 849

A disulphide bond can be formed between?

A) Two methionine residues B) Two cysteine residues C) A methionine and a cysteine residue D) All of these

---

No Details

Question 850

At isoelectric pH, an amino acid exists as?

A) Anion B) Cation C) Zwitterion D) None of these

---

No Details