M.Sc. (Semester II) (CBCS) Examination, 2017
GENETICS
PLANT BREEDING AND TISSUE CULTURE
Day Date: Friday, 28-04-2017 Max. Marks: 70
Time: 10.30 AM to 01.00 PM
N.B. Section I is compulsory.
From section II attempt any four.
All question carry equal marks.
Figures to right indicate full marks.
Draw neat and labeled diagrams.
Section-I
Q.1 Choose correct answer from given alternatives. 07
The quickest method of crop improvement is
Introduction Selection
Hybridization Mutation breeding
A new crop Raphanobrassica is cross between
Radish and cabbage Radish and Wheat
Radish and Rye Wheat and cabbage
demonstrated first time the recovery of protoplasts through
enzymatic degradation of cell walls.
E. C. Cockinng (1960) J. M. Nelson (1916)
A. Fleming (1929) K. J. Kasha (1973)
Transgenic plants can be used as a mean of
Biodegradation Biosynthesis
Biopesticides All of the above
The directed desirable gene transfer from one organism to other
and the subsequent expression of the gene is referred is
Transgenomics Transgenosis
Transgenics Transposons
In protoplast isolation enzyme is commonly used.
Amylase Cellulose Nuclease Lipase
In hybridization the parents used are the two individuals of the
same variety is called as
Intravarietal hybridization Intervarietal hybridization
Interspecific hybridization Intergeneric hybridization
Page 1 of 2
Answer the following terms. 07
What is mutation breeding?
Define mass selection.
What is hetrosis?
What is edible vaccine?
What is cryopreservation?
What is bulk method?
Law of homologous variation.
Section II
Q.2 Describe the breeding methods in self pollinated crops. Add note on its
merits and demerits.
14
Q.3 Give an account on cryopreservation. 14
Q.4 Describe use of somaclonal and gametoclonal variation for crop
improvement.
14
Q.5 Answer any two of the following: 14
Describe role of molecular marker in stress resistance breeding.
Give an account on artificial seeds.
Describe meristem culture.
Q.6 Answer any TWO of the following 14
Describe in details protoplast culture and fusion.
Give an account on Preservation of plant germ plasmin-vitro.
Describe GM crops for nutritional quality and quantity.