M.Sc. (Genetics) (Semester II) (CBCS) Examination, 2017
ADVANCE MICROBIAL GENETICS
Day Date: Monday, 24-04-2017 Marks: 70
Time: 10.30 AM to 01.00 PM
Instructions: Section-I is compulsory.
From Section-II attempt any four.
All questions carry equal marks.
Figures to right indicate full marks.
Draw neat and labeled diagrams.
Q.1 Rewrite the following sentences by using correct
alternatives:
07
method of gene transfer involves direct contact
between the bacteria.
Transformation Conjugation
Transduction Transition
The process of self-fertilization in fungi is known as
Automixis Amphimixis
Spermatization Somatogamy
Specialized Tranduction is mediated by
Lytic phages Lysogenic phages
Bacteria T4 phages
yeast strains can switch mating type.
Homothallic Heterothallic
Homozygous Heterozygous
If the F factor is attached to the bacterial genome the donor
Is called as
Strains superstrains
F++Strains Hfr strains
For inducing competency in a bacteria artificially
chemical is used.
CaCl2 BaCl2 NaCl2 Na2HPO4
Griffith used organism for his studies on
Transformation.
E.coli Bacillus subtilis
Streptococcus peumoniae Hemophiliusinflueazae
Page 1 of 2
Answer the following terms. 07
Transformation
Mutation
Prophage
Temporal mapping
Competancy
Autotrophs
Hfr
SECTION II
Attempt any four:
Q.2 Explain Griffith experiment and add a note on transformation. 14
Q.3 Describe in detail various phases of fungal life cycle. 14
Q.4 Write a note on conjugation and interrupted matting. 14
Q.5 Answer any two of the following: 14
Explain methods of artificial introduction of competency
Give an account on map of f plasmid.
Life cycle of virulent phages.
Q.6 Answer any two of the following: 14
Mechanism of chromosome transfer in bacteria.
Explain fluctuation test.
Explain transduction.