... Biology 6C
How many phosphate bonds are required to build a protein with 50
... What kind of cancer causing allele is the
result of a loss of function mutation?
What initiates transcription from the early
promoter of the Sxl gene?
is the function of amino acyl RNA synthetase?
What In recombinant DNA technology what is
the name of a carrier of DNA?
In the Sanger DNA sequencing m ...
Eukaryotic Gene Expression ppt
... Have a nuclear envelope
Many are multicellular with specialized cells
All cells have full sets of chromosomes
Not all genes need to be turned on
Given the following two evolutionary conserved eukaryotic genes A
... Gene A and B are transcription factors. One is a repressor of transcription and one is an
activator of transcription, but you don’t know which is which. Both bind to DNA:
protein A binds to DNA element AA and protein B binds to DNA element BB.
Each DNA binding portion, activation portion and repress ...
Genetic Engineering Short Notes
1. Genetic engineering- remaking genes for
2. Recombinant DNA- DNA made from two or
more different organisms
3. Restriction enzyme- enzymes that recognize
short specific DNA sequences and that cut the
4. Plasmid- small, circular DNA molecules that
can repli ...
The DNA Connection
... function of genes are the
production of proteins in an organisms
Microorganisms in Biotechnology
... depositing the new gene in the chromosome of that cell
• The gene is then passed on to daughter cells as the cell divides
Chapter 3 Section 4
... The main function of genes is to control the production
Proteins help determine the size, shape and other traits
Nitrogen bases form “rungs” of DNA ladder. The order
of the nitrogen bases along a gene form a genetic code
that specifies what type of protein will be pr ...
... 12. What are some ways in which posttranscriptional and posttranslational modifications may alter
protein structure and function?
Regulation of Gene Expression
... In some cases this shape change will help
RNA polymerase to bind to DNA, and in
other cases it will prevent it from doing so.
DNA and Chromosomes
... What is the relationship between DNA, chromosomes, and any organism?
Drag and drop the descriptive phrase to the correct column, thereby helping us to describe the relationships
between these important components of inheritance.
... (3) Which of the following statements are correct? For the incorrect statements, correct them
specifically (hint: the correction should not be simply from “can” to “cannot”, or from “is” to
(i) Restriction endonucleases cut DNA at specific sites that always located between genes.
... • Gene expression, the process by which DNA
directs protein synthesis, includes two stages:
transcription and translation
Notes from Lecture 1 - Tufts Computer Science
... 20 types of ”beads” called amino acids. Amino acids differ from eachother
based on what ”hangs off” the standard chemical backbone. We use letters
represent the alphabet of all amino acids.
Functional Characterization of Soybean Transcription Factor
... INTRODUCTION: Transcription factors are proteins that regulate gene expression
by binding to specific sequences in DNA. Transcription factors are among the
major targets to increase the tolerance of plants to stresses, since these proteins
control the expression of several genes simultaneously. Memb ...
2.5.4. DNA Revision Qs
... (b) the production of an enzyme _____________________________________
(c) the ability to play a musical instrument _____________________________________
(d) the ability to form a blood clot _____________________________________
(e) the ability to read _____________________________________
... Some genes are regulated (turned off and on) by
repressor proteins While others use proteins that
enhance the rate of transcription.
Operons are generally not found in Eukaryotes.
Gene regulation is controlled individually and have
regulatory sequences that are much more complex
that those of the la ...
Hierarchy of Genetics
... - They determine the traits that show up in an organism
-Different forms of a trait that a gene may have are
The Code of Life: Topic 3
... • Gene expression!
• You have 23 pairs of
• In each pair you get one from your
mother and one from your father.
• Each chromosome in a pair holds
all the same genes as the other.
• So what determines which gene is
expressed when you develop?
• ie how do you get your mother's
eyes or you ...
Gene Expression (Epigenetics)
... • Nucleosomes are DNA tightly
wrapped around histones
• DNA methylation – the addition of
methyl groups to DNA making
genes less accessible
• Histone Acetylation – acetyl groups
are added to histones to loosen
Therapeutic gene modulation
Therapeutic gene modulation refers to the practice of altering the expression of a gene at one of various stages, with a view to alleviate some form of ailment. It differs from gene therapy in that gene modulation seeks to alter the expression of an endogenous gene (perhaps through the introduction of a gene encoding a novel modulatory protein) whereas gene therapy concerns the introduction of a gene whose product aids the recipient directly.Modulation of gene expression can be mediated at the level of transcription by DNA-binding agents (which may be artificial transcription factors), small molecules, or synthetic oligonucleotides. It may also be mediated post-transcriptionally through RNA interference.