M.Sc-M.Sc Botany 1st Sem BO - 1.3 : Principles of Genetics and Plant Breeding(University of Pune, Pune-2013)
M.Sc. - I
BOTANY
SEAT No. : [Total No. of Pages : 2
BO - 1.3 : Principles of Genetics and Plant Breeding
(2008 Pattern) (Semester - I)
Time : 3 Hours] [Max. Marks :80
Instructions to the candidates:
1) Answer any Five questions, selecting at least Two questions from each Section.
2) Answers to the two sections should be written in separate answer books. 3) All questions carry equal marks.
4) Neat diagrams must be drawn wherever necessary.
SECTION - I
Q1) What is cytoplasmic inheritance. How it differs from Mendelian inheritance?
Explain with examples.
Q2) What is tetrad analysis? Describe the ordered and unordered tetrad analysis in
yeast.
Q3) Give an account of :
a) Mendelian and post Mendelian genetics.
b) Inheritance of quantitative characters in Nicotiana.
Q4) Write notes on any two of the following :
a) Factors affecting Hardy-Weinberg equillibrium law.
b) Mitochondrial genome.
c) Gene maps and physical maps.
P.T.O.
SECTION - II
Q5) Define inversion and translocation. Explain cytological consequences of
crossing over in inversion and translocation of heterozygotes.
Q6) Enlist different types of physical and chemical mutagens and their mechanism
of action. Add a note on its importance in Plant Breeding.
Q7) Comment on :
a) Genetic basis of Plant Breeding.
b) Molecular basis of gene mutations.
Q8) Write short notes on (Any Two) :
a) Inbreeding depression.
b) Concept of biodiversity conservation and regulation.
c) Role of polyploidy in crop improvement.
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| Earning: ₹ 7.10/- |
