University of Rajasthan 2007 B.Sc Zoology Ist - exam paper

PAPER-II : Z-102
CELL BIOLOGY AND GENETICS
Section-A
CELL BIOLOGY
Introduction to cell: Morphology, size, shape and characteristics of Prokaryotic, Eukaryotic, Plant and animal cells; basic idea of virus and cell-theory.
Cell membrane : Characteristics of cell membrane molecules, fuidmosaic model of Singer and Nicolson, concept of unit membrane.
Cell membrane transport : Passive (diffusion and osmosis facilitated (mediated) and active transport.
Cytoplasmic organelles:
Structure and biogenesis of mitochondria; electron transport chain and generation of ATP molecules (chemiosmotic hypothesis of Mitchele)
Structure and function of endoplasmic reticulum, ribosome (Prokayotic and eukaryotic) and Golgi complex.
Structure and function of lysosome, microbodies and centrioles.
Structure and functions of cilia, flagella, microvilli and cytoskeletal elements.
Section-B
NUCLEAR ORGANIZATION


Nucleus :
Structure and function of nuclear envelope, nuclear matrix and nucleolus.
chromosomes : Morphology, chromonema, chromomeres, telomeres, primary and secondary constrictions, chromatids; prokaryotic chromosome.
chromosome kind : Polytene and lampbrush.
Chromosomal organization : Euchromatin, heterochromatin and folded fibre model and nucleosome concept.
Nucleic Acids :
DNA structure, polymorphism (A, B, Z type) and replication (semiconservative mechanism), experiments of Messelson and Stahl : elementary idea about polymerases topoisomerase, single strand binding protein, replication forks (both unidirectional and bidirectional), leading and lagging strands, RA primers and Okazaki fragments; elementary idea about DNA repairs.
RNA structure and kind (mRNA, rRNA and tRNA) and transcription (idea about polymerase, exon and introns)
Genetic Code and Translation, triplet code, characteristics of triplet code; protein synthesis (translation)
Cell in Reproduction :
Interphase nucleus and cell cycle S, G-a, G-2, M-phase.
Mitosis : Phases and process mitosis structure and function of spindle apparatus; anaphasis movement.
Meiosis : Phase and process of meiosis, synapses and synaptonemal complex, formation and fate of chiasmata and significance of the crossing over.
part -C
GENETICS


Mendelism : Brief history of genetic and Mendel's work; Mendelian law, their significance and current status; chromosomal theory of inheritance.
Chromosomal mutations : Classification of chromosomal mutations, translocation, inversion deletion and duplication variation in chromosome numbers; haploidy, diploidy, polyploidy, aneuploidy, euploidy and polysomy.
Linkage and crossing over, elementry idea of chromosome mapping.
Genetic interaction : supplementray genes complementary genes, duplicate genes, epiostasis inhibitory and polymorphic genes multiple gene inheritance; ABO blood group and Rh factor and their significance.
Cytoplasmic inheritance.
PAPER-III : Z-103

Earning:   Approval pending.