PCB 3063 Exam Questions and Answers Fully Solved
Prokaryote - Answers Can make multiple proteins from one operon
Eukaryote - Answers -They have operons if they have a plastid or mitochondria
-Operon like features have been found in organisms like yeast
-Gene regulation in eukaryotic cells takes place at multiple levels transcriptional control
Operon - Answers A unit made up of linked genes which is thought to regulate other genes responsible
for protein synthesis
Mus Musculus - Answers The most important model organism in human genetics
Model for human diseases
Immunogenetics
Cancer genetics
Closely related to humans
Small size
Rapid reproduction
Easy to rear in the laboratory
Tolerates inbreeding
E. Coli - Answers Live in the intestines of healthy people and animals
Harmless or can cause brief diarrhea
Some strains can cause severe stomach cramps, bloody diarrhea, and vomiting
H. pylori - Answers Major role in causing peptic ulcers, challenging decades of medical doctrine holding
that ulcers were caused primarily by stress
This discover has allowed breakthrough in understanding a causative link between H. Pylori infection
and stomach cancer
Chromatin - Answers Material of which the chromosomes of organisms other than bacteria are
composed
Remodeling - Answers Size
, Heterochromatin
Euchromatin
Transcription in Eukaryotes - Answers Carried out in the nucleus of the cell and proceeds in stages:
initiation, elongation, and termination
Translation in Eukaryotes - Answers Biological process by which mRNA is translated into proteins in
eukaryotes
Ribosome - Answers A minute particle consisting of RNA and associated proteins found in large numbers
in the cytoplasm of living cells
Ribozyme - Answers Catalytically active RNA molecules or RNA-protein complexes, in which solely the
RNA provides catalytic activity
Gene Regulation - Answers This is important because the set of genes expressed in a cell determines the
set of proteins and functional RNAs it contains, giving it its unique properties
Operon in Prokaryotes - Answers Clusters of co-regulated genes with related functions
Gene in Eukaryotes (one gene-one enzyme hypothesis) - Answers The idea that genes act through the
production of enzymes, with each gene responsible for producing a single enzyme
RNA types - Answers mRNA
tRNA
miRNA (MicroRNA)
Cell Signaling - Answers To allow cells to receive, process, and transmit signals with its environment and
with itself
House-keeping genes - Answers Typically constitutive genes that are required for maintenance of basal
cellular functions that are essential for the existence of a cell, regardless of its specific role in the tissue
or organism
Types of Chromatic Alterations - Answers Histone modifications
Chromatin remodeling
DNA Methylation
Level of structures in Amino Acids - Answers Primary, Secondary, Tertiary, Quaternary
Primary - Answers Defines the linear string of polypeptides
Prokaryote - Answers Can make multiple proteins from one operon
Eukaryote - Answers -They have operons if they have a plastid or mitochondria
-Operon like features have been found in organisms like yeast
-Gene regulation in eukaryotic cells takes place at multiple levels transcriptional control
Operon - Answers A unit made up of linked genes which is thought to regulate other genes responsible
for protein synthesis
Mus Musculus - Answers The most important model organism in human genetics
Model for human diseases
Immunogenetics
Cancer genetics
Closely related to humans
Small size
Rapid reproduction
Easy to rear in the laboratory
Tolerates inbreeding
E. Coli - Answers Live in the intestines of healthy people and animals
Harmless or can cause brief diarrhea
Some strains can cause severe stomach cramps, bloody diarrhea, and vomiting
H. pylori - Answers Major role in causing peptic ulcers, challenging decades of medical doctrine holding
that ulcers were caused primarily by stress
This discover has allowed breakthrough in understanding a causative link between H. Pylori infection
and stomach cancer
Chromatin - Answers Material of which the chromosomes of organisms other than bacteria are
composed
Remodeling - Answers Size
, Heterochromatin
Euchromatin
Transcription in Eukaryotes - Answers Carried out in the nucleus of the cell and proceeds in stages:
initiation, elongation, and termination
Translation in Eukaryotes - Answers Biological process by which mRNA is translated into proteins in
eukaryotes
Ribosome - Answers A minute particle consisting of RNA and associated proteins found in large numbers
in the cytoplasm of living cells
Ribozyme - Answers Catalytically active RNA molecules or RNA-protein complexes, in which solely the
RNA provides catalytic activity
Gene Regulation - Answers This is important because the set of genes expressed in a cell determines the
set of proteins and functional RNAs it contains, giving it its unique properties
Operon in Prokaryotes - Answers Clusters of co-regulated genes with related functions
Gene in Eukaryotes (one gene-one enzyme hypothesis) - Answers The idea that genes act through the
production of enzymes, with each gene responsible for producing a single enzyme
RNA types - Answers mRNA
tRNA
miRNA (MicroRNA)
Cell Signaling - Answers To allow cells to receive, process, and transmit signals with its environment and
with itself
House-keeping genes - Answers Typically constitutive genes that are required for maintenance of basal
cellular functions that are essential for the existence of a cell, regardless of its specific role in the tissue
or organism
Types of Chromatic Alterations - Answers Histone modifications
Chromatin remodeling
DNA Methylation
Level of structures in Amino Acids - Answers Primary, Secondary, Tertiary, Quaternary
Primary - Answers Defines the linear string of polypeptides
