Zoology Paper 2006
 

Note.Attempt ONLY 5 questions,including Q 7.

ZOOLOGY PAPER I
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SECTION 1
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Q.1(a) Discuss PROTOZOA as UNICELLULAR and ACELLULAR organisms. (7)
(b)Define POLYMORPHISM and discuss it with reference to CEOLENTRATES.(6)
(c)"ANNELIDS have said to have true METAMERIC SEGMENTATION."(7)
Q.2.(a)"PORIFERA exhibits a Tissue level of organization".Discuss.(6)
(b)"ECHINODERMS have a close evolutionary relationship with CHORDATES".(6)
Comment the statement.
(c)Discuss insects as the most sucessful gruop.(8)
Q.3.Write short notes on the following;- (5each)
(a)CORAL REEF (b)COELOME
(c)TUBE FEET IN ECHINODERMS (d)FOOT IN MOLLUSCA.

SECTION II
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Q.4.(a)"HEMICHORDATES have a mixture of CHORDATE and NON-CHORDATE characters."Explain.(10)
(b)"ALL the CHORDATES character are present in Ascidea in larval stage".Discuss.(10)
Q.5.(a)Write an essay on biting mechanism of snakes.(8)
(b)Discss the different adoptation to flight with reference to birds.(12).
Q.6.(a)Describe placentation in mammals.(9)
(b)Write a short essay on different types of scales found in fishes(11).

COMPULSORY QUESTION
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Q.7. Write only the correct answer in the answer book.Donot reproduce the question.
(1) Contractile vacoule in protozoa is basically responsible for
(a)Excretion
(b)osmoregultion
(c)Feeding
(d)All of these.

(2)Pneumatocysts are typically present in
(a)Porifera
(b)Annelida
(c)Coelentrata
(d)Protozoa

(3)Pinococysts are present in
(a)Echinodermata
(b)Arthropoda
(c)Porifera
(d)None of these.

(4)Nerve cord is dorsally located in
(a)Annelids
(b)Mollusca
(c)Arthropodes
(d)None of these

(5)Open circulatory system is present in
(a)Annelids
(b)Insects
(c)Reptiles
(d)Mammals

(6)Sponges are present in
(a)Marine
(b)Freshwater
(c)Moist places
(d)Both (a) and (b)

(7)Telson is present in
(a)Annelids
(b)Arthropda
(c)Molluse
(d)Chordates

(8)Entamoeba histolitica is a member of class
(a)Scyphozoa
(b)Polycheata
(c)Mastigophora
(d)None of these

(9)A house fly has legs
(a)8
(b)10
(c)6
(d)4

(10)Wasps bite using
(a)Mouth
(b)Probosis
(c)Genital claspers
(d)None of these

(11)Number of cranial nerves in fish
(a)10
(b)12
(c)8
(d)None of these

(12)Frog has ribes
(a)6
(b)12
(c)4
(d)None of these

(13)Scales in reptiles are
(a)Ectodermal
(b)mesodermal
(c)Both a & b
(d)Endodermal

(14)Gill slits in Amphioxus are present
(a)Mouth
(b)Neck
(c)Pharynx
(d)Head

(15)Giraffe has neck vertbrea
(a)15
(b)10
(c)7
(d)None of these

(16)Duck billed platypus has on its body
(a)Feathers
(b)Hairs
(c)Scales
(d)None of these

(17)Pulmonary vein in mammals carries blood
(a)Deoxygenated
(b)oxygenated
(c)Both a&b
(d)None of these

(18)RBCs in amphibians are
(a)Nucleated
(b)Without nucleus
(c)Both a&b
(d)None of these

(19)Python kills its prey by
(a)poison bitting
(b)Constriction
(c)Both a&b
(d)None of these

(20)The location of mouth is ventral in
(a)Bony fish
(b)permyzaon
(c)Shark
(d)None of these
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[COLOR="Red"]ZOOLOGY PAPER 2[/COLOR]
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TIME ALLOWED THREE HOURS MAXIMUM MARKS 100
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NOTE:Attempt ONLY FIVE questions in all,INCLUDING question NO 8,WHICH IS COMPULSORY.

Q.1.(a)Give a detailed account of structure of lysosome.discuss its function in a cell.(12)
(b)Discuss the steps involved in the semi conservative replication of DNA.(8).
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Q.2.(a)Describe the microscopic,ultramicroscopic and chemical structure of a Eukaryotic chromosome.(10).
(b)List the steps invovled during the process of meiosis.(10).
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Q.3.(a)Define respiration.Discuss the mechanism invoved in the transport of carbon dioxide from tissue to lungs.(8).
(b)What is the basic excretory product?Discuss different excretory substances produced in different animals.(12).
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Q.4.(a)Describe the mechanism involved in transmission of the nerve impluse along the nervous system.(10).
(b)"Pituitary Gland works as a link b/w the nervous system and the other hormonal complexes of the body".Discuss.(10).
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Q.5.(a)Discuss the phenomena of genetic linkage.(5).
(b)Describe sex linkage ,giving suitable example.(6).
(c)Discuss Mendal's law of segregation,as it is understood now.(9).
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Q.6.(a)Discuss polyploidy.How is it exploited for human development?(7).
(b)Define gene map.Discuss the method involved in the preparation of a gene map in diploid.(13).
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Q.7.(a)Give an account of theory of Darwin theory of natural selection,as it is understood now.(13).
(b)State and explain Heackle 's Biogenetic law.(7).
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COMPULSORY QUESTION
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Q.8.Write only the correct answer,in the answer book dont reproduce the question.
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1)cell membrane is chemically
a.nucleoprotein
b.lipoprotein
c.lipid
d.protein
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2).ATP is produced in
a.golgi complex
b.lysosome
c.mitochondria
d.none of these
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3).Transcription is the phenomenon involved with
a.mRNA formation
b.binding of aminoacid
c.DNA replication
d.all of these
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4)Glycolsis accurs in
a.endoplasmic recticulum
b.cytoplasm
c.mitichondria
d.golgi bodies
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5)Centromere in a chromosome is heterochromatic as it
a.donot divide
b.helps chromosomal attachment with the spindle
c.donot go a regular change in the ceel cycle
d.all of these together
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6)Neurotransmitter are involved in
a.nerve transmission
b.synoptic transmission
c.chemical transmission
d.b &c
e.a & c
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7)Pepsin is the chemical involved in
a.Protein breakdown
b.carbohydrates breakdown
c.protein synthesis
d.lipid breakdown
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8)Food is assimilated into the body from digestive tract in
a.oesophagus
b.stomach
c.small intestine
d.rectum
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9)Excretory product is produced through the breakdown of
a.protein
b.carbohydrates
c.lipid
d.all of these
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10)Basic process of respiration occurs in
a.lungs
b.mitochondria
c.blood circulation
d.none of these
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11)Genetic dominance involves
a.personality dominance
b.better adaptive value
c.a wider population distribution
d.all a,b&c
e.none of the above
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12)Principle of segregation is applicable to
a.Hetrozygous individual only
b.homozygous indvidual only
c.Diploid individual
d.none of these
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13)XXY individual in man is phenotypically a
a.Female
b.male
c.super female
d.super male
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14)sex linkage concerns with the gene
a.Responsible for the development of sex
b.Associate with some sex
c.Located on X chromosome only
d.located on sex chromosome
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15)Cistron is the smallest part of the chromosome working as
a.Mutational unit
b. functional unit
c.Recombinational unit
d.None of these
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16)First living organism on this planet was
a.an algal cell
b.a virus
c.a protozoa
d.none of these
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17)Darwin's theory of natural selection believe in selection of
a.the fittest
b.fitters
c.better adapted individual
d.All of these
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18)The raw material for evolution comes from
a.Mutation
b.Chromosomal aberration
c.Recombination
d.All of these
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19)A group gevelops to adapt a number of diverse niches.The phenomena is called as
a.Convergent evolution
b.Divergent
c.Punctuated evolution
d.none of these
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20)Linneous was the father of classification and was
a.Not believer of evolution
b.strong believer of evolution
c.believer of limited evolution
d.Believer of natural selection
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answers
 

i have made an effort to solve the multiple choice questions.it will be appreicated if mistakes are pointed out.
paper 1- compulsory question No.7
1- b) osmoregulation
2-c) coelentrates
3-c) porifera
4-d) none of these
5-b) insects
6-d) botha) and b)
7-b) arthropoda
8-d) none of these
9-c)6
10-a) mouth
11--???
12-d) none of these
13-a) ectodermal
14-c) pharynx
15-c) 7
16-b) hair
17-b) oxygenated
18-c) both a)and b)
19-c) both a) and b)
20-c shark
waiting for correction
regards

compulsory:paper 2 answers
 

i ve tried to solve some multiple choices of zoology paper 2
1-b) lipo protein
2-c) mitochondria
3-a)mRNA formation
4-b) cytoplasm
5-b) help chromosomal attachment to spindle ????
6-d) b) and c)
7-a) protein breakdown
8-c) small intestine
9-d) all of these
10-b) mitochondria
11-d) a),b) and c)?????
12-c) diploid individual
13-b) male
14-d) located on sex chromosome
15-d) none of these
16-a) an algal cell
17-d) all these
18-c) recombination
19-b) divegent
20-a) not believer of evolution


regards

For


Paper I

11): (a)

[U]cranial nerve[/U]

Any of several nerves that arise in pairs from the brain stem and reach the periphery through openings in the skull. There are 12 such pairs in mammals, birds, and reptiles and usually 10 pairs in amphibians and fish.

* source [url]http://www.answers.com/topic/cranial-nerves?cat=health[/url]


Paper II

The common sense says that answer to folowing should be (a) or (b). But my brain storming answer that if this genetic dominance is amongst various members of a single species thn it should be (a). if it is between species of a genera then it could be (b).

11)Genetic dominance involves

a.personality dominance
b.better adaptive value
c.a wider population distribution
d.all a,b&c
e.none of the above