Biology Exam Question Papers

Biochemistry Ph.D Entrance Test 2015 Question Paper (Kerala University – Download PDF)


Biochemistry PhD Entrance Paper

KERALA UNIVERSITY Ph.D. ENTRANCE EXAMINATION
OCTOBER – 2015 
FACULTY OF APPLIED SCIENCES

BIOCHEMISTRY

Time: 140 Minutes                                                  Maximum Marks: 160

Note: Answer any twelve questions from Section B and one question from Section C in the subject concerned. In Section B, each question carries 10 marks. Section C carries 40 marks. In Section B an answer should not exceed 100 words. In Section C, an answer should not exceed 500 words.

SECTION – B

(1). Outline the principle behind the functioning of a Spectrophotometer.

(2). What is a zwitterion? Explain zwitterion with two examples.

(3). How is the functioning of an enzyme regulated? Explain with suitable examples.

(4). Elaborate the importance of isoelectric point in protein purification.

(5). What is sedimentation coefficient? Explain its importance in centrifugation.

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Biology Exam Question Papers

Kerala University Biochemistry Ph.D Entrance Examination 2009 Question Paper (Download PDF)


Biochemistry PhD Entrance Paper

KERALA UNIVERSITY Ph.D. ENTRANCE EXAMINATION
NOVEMBER 2009
FACULTY OF APPLIED SCIENCES

BIOCHEMISTRY

Time: 140 Minutes                                                  Maximum Marks: 160

Note: Answer any twelve questions from Section B and one question from Section C in the subject concerned. In Section B, each question carries 10 marks. Section C carries 40 marks. In Section B an answer should not exceed 100 words. In Section C, an answer should not exceed 500 words.

SECTION – B

(1). What are ribozymes? Explain their characteristic activities.

(2). What are Telomeres? What are their characteristics? How are they synthesized?

(3). Briefly describe how X-ray diffraction technique has been employed to elucidate the structure function relation of ribosomes.

(4). Dietary deficiency of vitamin B1 leads to the disease beriberi. This is characterized by increased levels of pyruvate and alpha ketoglutarate in the blood. How does vitamin B1 deficiency account for this?

(5). Explain why familial hypercholesterolemia results in elevated levels of blood cholesterol.

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Biology Exam Question Papers

Kerala University Biotechnology Ph.D Entrance Examination 2009 Question Paper (Download PDF)


Biotechnology PhD Entrance Paper

KERALA UNIVERSITY Ph.D. ENTRANCE EXAMINATION
NOVEMBER 2009
FACULTY OF APPLIED SCIENCES

BIOTECHNOLOGY

Time: 140 Minutes                                                                            Maximum Marks: 160

Note: Answer any twelve questions from Section B and one question from Section C in the subject concerned. In Section B, each question carries 10 marks. Section C carries 40 marks. In Section B an answer should not exceed 100 words. In Section C, an answer should not exceed 500 words.

SECTION – B

(1). Write notes on: (a). Mitotic spindle, (b). Pasteurization, (c). Noncompetitive inhibition

(2). Explain the role of plant tissue culture in secondary metabolite production.

(3). Explain different models of plasma membrane.

(4). What is PCR? Explain briefly different types of PCR. Write two applications of PCR.

(5). Describe the structural composition of gram positive bacteria. How it is different from that of gram negative bacteria?

(6). What are GMOs? Add a not on Bt cotton.

(7).  Define:

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