ZOOLOGY (Paper II) 2014



QUESTION PAPER SPECIFIC INSTRUCTIONS
Please read each of the following instructions carefully before attempting questions.
There are EIGHT questions divided into two SECTIONS and printed both in HINDI and in ENGLISH.
Candidate has to attempt FIVE questions in all.

Question No. I and 5 are compulsory and out of the remaining, THREE are to be attempted choosing


at least ONE from each section.
The number of marks carried by a question/part is indicated against it.
Answers must be written in the medium authorized in the Admission certificate which must be stated
clearly on the cover ofthis Question-cum-Answer booklet in the space provided. No marks will
be given for answers written in medium other than the auth01ized one.


Word limit in questions, wherever specified, should be adhered to.
Illustrate your answers with suitable sketches and diagrams, wherever considered necessary.
Attempts of questions shall be counted in chronological order. Unless struck off, attempt of a question
shall be counted even ifattempted partly. Any page or portion ofthe page left blank in the answer book
must be clearly struck off.



SECTION

10
Characterize with suitable examples, the following features of genetic code
Degeneracy Universality ofgenetic code and add a note on Wobble hypotliesis.

Illustrate and narrate structure of F1 Fo particles of mitochondria. How do they facilitate movement ofprotons across the mitochondrial membrane leading to ATP generation?

Give an illustrated account of Lac Operon in E. Coli.

Define and differentiate between Genomics and Proteomics. Add a note on their biomedical applications.

Complete the table given below by inserting 1/2 or 1/4 for the probability of each genotype of progeny for each type of mating. Give reasons. src='./qimages/301-1e.jpg'>

15 15 20
Describe the molecular basis of the following inherited diseases and their manifestations in humans: Cystic fibrosis Sickle cell anemia Hunting chorea

Identify the five important evolutionary changes led to evolution ofmodem Homo sapiens from the ancestral stock during various Geological era and epochs.

Compare the events during mitotic and meiotic cell cycles. Add a note on role of stage-specific macromolecules and enzymes in such cycles.

3 15 15 20
Describe the process ofDNA finger printing and indicate which of the following is used in DNA finger printing
Palindromic sequences of DNA V.N.T.R
Shine Dalgrano sequences TATA boxes

Give an illustrated account of evolution ofhorse, mentioning the relevilnt geological time periods.

State and explain Hardy Weinberg's law ofgenetic equilibrium. What are its limitations Calculate the allele frequencies ofL" and LN genes from the following blood group data ofa population on the basis of this Jaw.
src='./qimages/301-3c.jpg'>

20 15 15
Give an illustrated account of protein synthesis in eukaryotic cell. Compare this with similar events in a prokaryotic. Add a note on the mechanisms that lead to migration of such proteins in the lumen of endoplasmic reticulum.

What are the various vectors used in genetic engineering Write and compare the protocol for each.

Define cantinental drift. Explain the processes by which this has impacted upon the geographical distribution of fauna restricting it to certain regions only.

SECTION

10

What are nucleic acids? Describe the structure and functions of various types of RNAs.

Name the enzymes and hormones released by liver and pancreas. Discuss their functions in digestion of food and maintenance of blood glucose balance.

What is I.V.F. Make a flow chart of steps in lV.F. Add a note on its applications.

Give evidence in favour of mitochondrial theory of aging. What are its limitations?

What are vitamins? Name and give the functions of water soluble vitamins. Tabulate the diseases that occur in humans due to hypo and hypervitaminosis.

15 15 20

What do you mean by neurotransmitters Describe adrenergic, cholinergic and peptidergic neurotransmitterS and write an illustrated account of their functions in synaptic transmission.

Describe the process of formation of three germinal layers. Draw sequential diagrams and narratives to show formation of eye in frog or chick.

What is haematopoiesis Indicate the site and the stages by which erythrocytes, various types of leycocytes and platelets are formed. Which chemical faqor(s) coordinate arid control these events?

15 20 15

What is paedomorphosis? How does it differ from Neoteny? Add a note on its significance in evolution of Homo sapiens.

What are immunoglobulins Describe the structure of IgG and add a note on its diversity .

What do you mean by anticoagulant Describe the structure and functions of natural and synthetic anticoagulants.

15 20 15

Haeckel propounded the concept ",Ontogeny recapitulates phylogeny"..Give evidence and examples that negates it or favours it.

What is apoptosis What are its stages Write about the molecular mechanism of apoptosis.

What is cladistics? Discuss its applications in understanding the evolution of different life forms and· phylogeny.