KERALA UNIVERSITY Ph.D. ENTRANCE EXAMINATION – 2013
FACULTY OF SCIENCES
ZOOLOGY
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). Give an account on different types of DNA.
(2). What is gluconeogenesis?
(3). What are ecological pyramids?
(4). What is the importance of crossing over?
(5). What are multiple alleles?
(6). Explain Chemi-osmotic theory.
(7). Distinguish between neurogenic and myogenic heart.
(8). Explain the structure of nephron.
(9). Give an account on neurotransmitters.
(10). Distinguish between aestivation and hibernation
(11). Explain second messenger hypothesis with an example.
(12). Briefly explain egg-sperm interaction.
(13). What do you mean by apoptosis?
(14). What is gene therapy?
(15). What are molecular markers?
(16). Give an account on immunoglobulins.
SECTION – C
(1). Explain various types of membrane transport.
(2). Give an account on types, causes and consequences of environmental pollution.
(3). What do you mean by hypothesis? Distinguish between Null and alternate hypothesis. Explain various methods for testing hypothesis.
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