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Posted Date: 29 Sep 2009 Posted By: Pradip B Choudhury Member Level: Gold
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2007 Assam University B.Sc TDC Part-III Zoology Honours --- Ninth Paper Question paper
NTS-07/ ZOOH-9 /063
2007
ZOOLOGY (Honours)
Ninth Paper
(Advance Physiology, Endocrinology, Developmental Biology, Genetics & Adaptation)
TDC Part-III
Full Marks : 70
Pass Marks : 21
Time : 3 hours
The figure in the margin indicates full marks for the questions
Answer five questions, taking one from each Unit
UNIT –I
1. (a) Describe the process of digestion and absorption of fats. 5+5=10
(b) Describe th mechanism of contraction of skeletal muscle. 10
2. Write notes on any four of the following : 5 x 4 = 20
(a) Vitamin A in vision
(b) Loop of Henle
(c) Liver
(d) Spleen
(e) Action Potential
(f) Neurotransmitters
UNIT –II
3. (a) What is Graffian follicles? Discuss the role of ovarian hormones in regulation of estrus
and menstrual cycle in mammals. 4+6 = 10
(b) What is G –Protein? Describe the molecular mechanism of action of steroid hormones.
2+8 = 10
4. Write notes on any four of the following: 5 x 4 = 20
(a) Calcium Homeostasis
(b) Placental Hormones
(c) Second Messengers
(d) ADH
(f) Digestive hormones
(g) Transport of Hormones
UNIT –III
5. What is Metamorphosis? Describe the process of metamorphosis in amphibians with special
reference to role of hormones. 2+8 = 10
6. Write notes on any two of the following: 5 x 2 = 10
(a) Types of Placenta
(b) Fate Map
(c) Parthenogenesis
(d) Ecdysone
UNIT –IV
7. What is Genetic Engineering? Describe the process of gene cloning in bacteria. 2+8=10
8. Write notes on any two of the following: 5 x 2 = 10
(a) Restriction Enzymes
(b) Cloning Vectors
(c) Transgenesis
(d) Non-disjunction
UNIT –V
9. What is Speciation? Describe various isolating mechanism involved in speciation. 2+8=10
10. Describe cursorial adaptations in mammals. 5+5 =10
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