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Making Sense of Complicated Microarray Data
Making Sense of Complicated Microarray Data

... Goal : Measure ratios of gene expression levels. – Ratio = Ti/Ci. Ratio of measured treatment intensity to control intensity for the ith spot ...
Genetics
Genetics

... Genes can be identified and inactivated one at a time using genetic techniques  Dissection of genomes gene-by-gene unravels the complexity of biological systems  The challenge for modern biology lies in understanding how the multitude of networks of genes and higher level systems interact to produ ...
Genomics of Food
Genomics of Food

... location of the genes relative to other genes on the DNA. —But jut because you know the DNA sequence of a gene, does that mean you know its functions? —Unfortunately, it doesn't. —— ...
Protein-coding genes
Protein-coding genes

... increased. 2. Transcriptome to proteome Regulatory constraints include posttranslational modification of proteins. 3. Proteome to dynamic system Metabolic networks of glycolysis and mitochondrial oxidation-reduction are the dynamic systems presently the best understood in terms of both mechanism of ...
Microarrays - Harvard University
Microarrays - Harvard University

... query RNAes. In addition “alien genes” can be constructed to match multiple alien oligo spots. These will then provide a positive query or reference spiking control. Particularly useful here is labeling by a third color dye. ...
Birth of a new gene on the Y chromosome of Drosophila melanogaster
Birth of a new gene on the Y chromosome of Drosophila melanogaster

... the X. This pattern is consistent with the mammalian sex chromosomes having originated from an ordinary pair of chromosomes, followed by massive gene loss from the Y (1–4). In contrast, the closest homologs of all Drosophila melanogaster Y-linked protein-encoding genes are autosomal, strongly sugges ...
Designer Genes - Heredity
Designer Genes - Heredity

... Transcription: Synthesis of RNA from a DNA Template. Requires DNA-dependent RNA polymerase plus the four nucleotides (ATP, GTP. CTP and UTP). Synthesis begins at a the initiation site on DNA The template strand is read 3' to 5' and the mRNA is synthesized 5' to 3' ...
CORRESPONDENCE
CORRESPONDENCE

... located near the low-affinity ‘Fcr’ locus on mouse chromosome 1. FcRH6, FcRL (also known as Freb and FcRX) and FcRL2 (also known as Freb2 and FcRY) are located in syntenic regions relative to their human orthologs. The new names we suggest for these genes are Fcrl6, Fcrla and Fcrlb, respectively. Ex ...
6.4 Traits, Genes, and Alleles TEKS 6A, 6F
6.4 Traits, Genes, and Alleles TEKS 6A, 6F

... 6A identify components of DNA, and describe how information for specifying the traits of an organism is carried in the DNA and 6F predict possible outcomes of various genetic combinations such as monohybrid crosses, dihybrid crosses and non-Mendelian inheritance ...
Investigating Inherited Human Traits LAB
Investigating Inherited Human Traits LAB

... 2. How might it be possible for you to show a trait when neither of your parents shows it? ...
1 Dihybrid Cross Dihybrid Cross Incomplete Dominance
1 Dihybrid Cross Dihybrid Cross Incomplete Dominance

... mammals,
coat
color
depends
on
two
genes – One
gene
determines
the
pigment
color
(with alleles
B
for
black
and
b
for
brown) – The
other
gene
(with
alleles
C
for
color
and
c
for no
color)
determines
whether
the
pigment
will be
deposited
in
the
hair ...
Mendel and the Gene Idea
Mendel and the Gene Idea

... Variability The ability of organisms to change their characters. It allow adaptation of organisms to certain environment. It allow evolution of biological species. ...
Biology 303 EXAM II 3/14/00 NAME
Biology 303 EXAM II 3/14/00 NAME

... A defect in aminoacyl-tRNA synthetase would directly lead to: 1. a block in transcription 2. uncharged tRNA ...
common formative assessment planning template
common formative assessment planning template

... Heredity is the passage of genetic information from one generation to another. Sexual reproduction allows for genetic variability and is the basis for the evolution of living organisms. 2. Some of the characteristics of an organism are inherited and some result from interactions with the environment ...
What Is Gene cloning and How Is It Used? 1. Explain what is meant
What Is Gene cloning and How Is It Used? 1. Explain what is meant

Clustering Gene Expression Data: The Good, The Bad, and
Clustering Gene Expression Data: The Good, The Bad, and

... • The ideal approach is to get a set of new observations, with known class label and see how frequently the classifier makes the correct prediction. • Performance on the training set is a poor approach, and will deflate the error estimate. • Cross validation methods are used to get less biased estim ...
What Is Gene cloning and How Is It Used? 1. Explain what is meant
What Is Gene cloning and How Is It Used? 1. Explain what is meant

... Define the term "restriction enzymes" and explain how they are used to insert genes into a vector. ...
Statistical analysis of DNA microarray data
Statistical analysis of DNA microarray data

... Comparing ER- and ER+ breast cancer patients • Estrogen receptor status is one of the key biomarkers for breast cancer prognosis (ER- indicates poor prognosis) • Select a dataset (GSE2034, Wang et al) from GEO containing 286 samples (77 ER-, 209 ER+) • Compare the ER- group vs ER+ group, select the ...
Lab Business - Memorial University
Lab Business - Memorial University

... These questions extend to other synthetic DNAs, such as the short (<50 base pair) oligonucleotides (“oligos”) incorporated as probes into microarrays. For example, the “ArkChip” is a platform for simultaneous “re-sequencing” of complete mitochondrial DNA (mtDNA) genomes from multiple species (“Labor ...
PowerPoint-Präsentation
PowerPoint-Präsentation

... These results and other comparisons will be presented in the BioConpages database. The database can be searched by GeneID and to retrieve information of the corresponding transcription signals and percentage of methylation in the different cell types. In general, when selecting genes differentially ...
Essential knowledge 2.E.1
Essential knowledge 2.E.1

... Apoptosis, an evolutionarily conserved programme of cellular selfdestruction, is essential for the development and survival of most multicellular animals. It is required to ensure functional organ architecture and to maintain tissue homeostasis. During development of the simple nematode Caenorhabdit ...
Gene Expression
Gene Expression

... Genetic Code: After transcription the _______ material message is ready to be translated from the _________________ of RNA to the language of proteins. The instructions for building a protein are written as a series of _______ nucleotide sequences called __________. 2. Translation 2nd step: The prot ...
Answered copy of exam 3 (white)
Answered copy of exam 3 (white)

... is a recessive genetic disease that can be detected in utero only with DNA-based tests. Is a disease that can be detected in utero using an enzyme assay. is a relatively safe procedure that provides fetal cells and byproducts 15-16 weeks into a pregnancy. Is a non-genetic condition that can be detec ...
Post-transcriptional Gene Silencing (PTGS)
Post-transcriptional Gene Silencing (PTGS)

... • PTGS is heritable, although it can be modified in subsequent cell divisions or generations – Ergo, it is an epigenetic phenomenon ...
A bioinformatics simulation of a mutant workup from a
A bioinformatics simulation of a mutant workup from a

... Go to OMIM to find information on human ortholog Do Clustal analysis to compare to known proteins ...
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Gene expression profiling



In the field of molecular biology, gene expression profiling is the measurement of the activity (the expression) of thousands of genes at once, to create a global picture of cellular function. These profiles can, for example, distinguish between cells that are actively dividing, or show how the cells react to a particular treatment. Many experiments of this sort measure an entire genome simultaneously, that is, every gene present in a particular cell.DNA microarray technology measures the relative activity of previously identified target genes. Sequence based techniques, like serial analysis of gene expression (SAGE, SuperSAGE) are also used for gene expression profiling. SuperSAGE is especially accurate and can measure any active gene, not just a predefined set. The advent of next-generation sequencing has made sequence based expression analysis an increasingly popular, ""digital"" alternative to microarrays called RNA-Seq. However, microarrays are far more common, accounting for 17,000 PubMed articles by 2006.
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