Cluster University Integrated B.Sc. M.Sc. Botany 3rd Sem BASICS OF GENETICS Syllabus

Cluster University Integrated B.Sc. M.Sc. Botany 3rd Sem BASICS OF GENETICS Syllabus


CLUSTER UNIVERSITY OF JAMMU
SYLLABUS – SEMESTER 3rd (CBCS) – INTEGRATED M.SC (BOTANY)
(CORE COURSE-THEORY)
COURSE CODE : 4BOTTC0303 Page 1 of 2
(EXAMINATION TO BE HELD IN 2017, 2018 AND 2019)
TITLE: BASICS OF GENETICS
COURSE CODE : 4BOTTC0303 CREDITS : 04
DURATION OF EXAMINATION TOTAL: 100 Marks
MINOR TEST : 01 Hour MINOR TEST: 20 Marks
MAJOR TEST : 2.5 Hours MAJOR TEST: 80 Marks

Unit-1: Heredity and Variation (12 Hours)
Mendelism: History, Mendel’s experiments, principles of inheritance, chromosome theory of inheritance, autosomes and sex chromosome. Allelic and non
allelicinteractions, recessive and dominant traits, Multiple alleles , lethal alleles,Polygenic inheritance.

Unit-2: Extra chromosomal inheritance (12 Hours)
Chloroplast mutation: variegation in 4 o’clock plant; mitochondrial mutations in yeast, maternal effects of shell coiling in snails, infective heredity – kappa particles
in Paramaecium.


Unit-3:Linkage, crossing over and chromosomal mapping (12 Hours)
Linkage: chromosomal theory of linkage, complete and incompletelinkage, crossing over:mechanism of crossing over. Recombination frequency, two point and three point test cross, interference and coincidence. Gene mapping and sex linkage.


Unit-4: Chromosomal alternations (12 Hours)
Structural modifications: Deletions, Duplications, Inversions and Translocation; position effect; Numerical changes: Euploidy(autopolyploidy and allopolyploidy) and Aneuploidy ( Trisomy, nullisomy & monosomy).

Unit-5 Gene mutations (12 Hours)
Types of mutations; Molecular basis of mutations, physical and chemical mutagens, role of mutations in crop improvement. Transposable elements: transposable elements in
prokaryotes (Is and Tn element) and eukaryotes (Ac-Ds). Mechanism of transposition and its role in mutations. DNA damage and repair mechanism.

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