Dr.A.P.J.Abdul Kalam University
Master of Science (Botany)
Third Semester Main Examination, Dec-2020
Cytogenetics & Genetics [MSB303T]
Time: 3:00 Hrs Max Marks 85
Note: Attempt all questions.
All questions carry equal marks.
Q.1 Write short notes on:-
(a) Bacteriophage
(b) Conjugation
OR
What is genetic transformation? Describe it.
Q.2 Somatic cell genetics-An alternative approach to gene mapping. Describe it.
OR
Write short notes on:-
(a) Genetic mapping
(b) Linkage groups
Q.3 What is DNA damage? Explain it.
OR
Describe physical and chemical mutagens.
Q.4 Describe the effect of aneuploidy on phenotype in plants.
OR
What is structural heterozygote? Explain it
Q.5 What is Cot Curve? Write its significance.
OR
Describe the hybrid vigour in brief.
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