LOYOLA COLLEGE (AUTONOMOUS), CHENNAI– 600 034
B.Sc. DEGREE EXAMINATION – ZOOLOGY
fifth SEMESTER – NOVEMBER 2003
ZO 5501/ ZOO 510 genetics
05.11.2003 Max: 100 Marks
1.00 – 4.00
PART – A
Answer ALL questions (10 ´ 2 = 20 Marks)
- Define a) gene b) Chromosome
- What is erythroblastosis soetalis?
- Write a note on a) cistron b) recon
- Define a) antigen b) antibody
- What is a plasmid?
- Write any two advantages of outbreeding.
- Define a) genotype b) phenotype
- Give any two principles of bioinformatics.
- What is amnioentesis
- What is a Lysogenic bacteria?
PART – B
Answer any four questions (4 ´ 10 = 40 Marks)
- Explain Mendel’s law of independent assortment with an example.
- Explain in detail the maternal inheritance.
- Give an account on genetic counselling and planned genotypes.
- Give an account of Hardy – Weinberg’s equilibrium with a suitable example.
- Explain antigen-antibody reaction.
- Give an account on phage infection.
PART – C (2 ´ 20 = 40 Marks)
Answer any two questions
- Define multiple alleles. Explain multiple alleles in detail
with suitable examples.
- Write an essay on microbial genetics.
- Give an account of inherited metabolic disorders in man.
- Write an essay on interaction of genes with examples.