B.Sc Corporate Genetics Question Paper 2006

Loyola College B.Sc. Zoology April 2006 Genetics Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 12

FIFTH SEMESTER – APRIL 2006

                                                                   ZO 5501 – GENETICS

(Also equivalent to ZOO 510)

 

 

Date & Time : 22-04-2006/1.00-4.00 P.M.   Dept. No.                                                       Max. : 100 Marks

 

 

Part A                                     (Answer All)                          10 X 2 = 20

  1. What are multiple alleles?
  2. Differentiate sex-linked genes from sex-limited genes.
  3. Distinguish transitions from transversions.
  4. Explain the terms cistron and recon?
  5. Categorise DNA polymerases and mention their role.
  6. Comment on erythrobalstosis foetalis.
  7. Define heterosis.
  8. Who are Klinefelters’?.
  9. What are lytic and lysogenic life cycles?
  10. Comment on “Feulgen staining”

 

 

Part B                                     (Answer any four)                 4 X 10 = 40

  1.  Briefly explain Hardy Weinberg equilibrium.
  2. Categorise numerical and structural changes in chromosomes.
  3. Explain bacterial conjugation.
  4. Write notes on amniocentesis.
  5.  Describe the inherited metabolic disorders in man.
  6.  Critically evaluate the ethical implications of biotechnology.

 

 

Part C                                     (Answer any two)                              2 X 20 = 40

  1.  With suitable example explain Mendelian principles.
  2. DNA is the genetic material – Justify.
  3. Write an essay on maternal effects and cytoplasmic inheritance.
  4. Elaborate (1) Operon model of gene regulation   (2) Human genome project.

 

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Loyola College B.Sc. Zoology Nov 2006 Genetics Question Paper PDF Download

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                           LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034          B.Sc. DEGREE EXAMINATION – ZOOLOGY

AF 10

FIFTH SEMESTER – NOV 2006

         ZO 5501 – GENETICS

(Also equivalent to ZOO 510)

 

 

Date & Time : 27-10-2006/9.00-12.00   Dept. No.                                                       Max. : 100 Marks

 

 

Part-A

Answer ALL.                                                                                                                   (10×2=20 marks)

 

  1. What is non-disjunction?
  2. Define the following.
  3. Muton b. Allele
  4. What is a Syndrome?
  5. Find the result of the following crosses.
  6. AB x AB b. OO x AA
  7. Find out the gene frequency of A and a. Where the genotype frequency of ‘a’ is 0.25.
  8. What is antigen antibody reaction?
  9. What are transduction and transformation?
  10. When a carrier woman is married to a colorblind man whose mother is normal, what is the

possibility of colorblindedness in their progeny.

  1. What is law of segregation?
  2. Distinguish co-dominance and incomplete dominance.

Part-B

Answer any FOUR.                                                                                               (5×8=40 marks)

 

  1. Explain in detail the chromosomal aberrations.
  2. Explain with suitable example y-linked inheritance.
  3. With suitable example explain crossing over.
  4. Write a paragraph on mendel’s dihybrid cross.
  5. Explain the factors affecting Hardy Weinberg’s law.
  6. Write a paragraph on the principles of bio-informatics.

 

Part-C

Answer any TWO.                                                                                               (2×20=40 marks)

 

  1. a. What is maternal inheritance?
  2. Write an essay on cytoplasmic inheritance.
  3. a. What is a phage?
  4. Write an experiment to prove DNA as the genetic material through phage infection.
  5. a. Define multiple alleles.
  6. With suitable examples explain multiple allelism.
  7. Write an essay on the human genome project.

 

 

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