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The nucleotides
The nucleotides

Design of a High School Laboratory: `Visualizing DNA Sequences`
Design of a High School Laboratory: `Visualizing DNA Sequences`

... describes the learning process as it relates to the biological activity of the brain. He proposes that an understanding of this process will help teachers to model lessons in a way that will better facilitate learning. Among other things, he states that “truly effective teaching weans the student in ...
thalassemia occurs when one or more of the 4 alpha chain genes
thalassemia occurs when one or more of the 4 alpha chain genes

... hemoglobin (MCH) values. However, double heterozygotes for both  and  anemias could have normal MCV and MCH values, and thus could be missed. Quantitaion of the HbA2 level should also be tested for. ...
Expansion of tandem repeats and oligomer
Expansion of tandem repeats and oligomer

... It is known that SSR constitute a large fraction of noncoding DNA and are relatively rare in protein coding sequences. SSR are of considerable practical and theoretical interest due to their high polymorphism [7]. The formation of a hairpin structure during replication [12,13] is believed to be the ...
Study Guide Chapter 16- Molecular basis of Inheritance
Study Guide Chapter 16- Molecular basis of Inheritance

... 3. Primase adds a short sequence of RNA nucleotides (called a primer). The primer is complementary to the DNA template strand. 4. DNA pol III adds nucleotides to 3’ end of the primer, synthesizing the new DNA strand in the 5’  3’ direction. The DNA Pol III synthesizes the new DNA strand toward the ...
A-12 Models for gene activation
A-12 Models for gene activation

... At low concentrations of the gene product g, the negative term is dominating, The concentration of g will decline further. At higher g levels, the autoregulatory term exceeds the decay, and the concentration will increase until the saturation is reached. The morphogen m is assumed to have an activat ...
Module 1: Definitie Basiscursus Steekproeven
Module 1: Definitie Basiscursus Steekproeven

... samples are labeled differently and hybridized together. Under ideal circumstances, the intensity of an array element is linearly proportional to the abundance of the corresponding DNA sequence. ...
Genetic polymorphisms and alternative splicing of the
Genetic polymorphisms and alternative splicing of the

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some recent developments in genetics
some recent developments in genetics

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Chapter 4: DNA, RNA, and the Flow of Genetic Information
Chapter 4: DNA, RNA, and the Flow of Genetic Information

... local region. In the laboratory, the double helix can be disrupted by heating a solution of DNA or by adding acid or alkali to ionize its bases. The dissociation of the double helix is called melting because it occurs abruptly at a certain temperature. The melting temperature (Tm) is defined as the ...
Pre-lab Homework Lab 3: DNA Structure and Function
Pre-lab Homework Lab 3: DNA Structure and Function

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Cancer Drug Classes
Cancer Drug Classes

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Fe2+ is absorbed from the lumen of the gut (in the small intestine) by
Fe2+ is absorbed from the lumen of the gut (in the small intestine) by

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Section E
Section E

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Sex Chromosomal Transposable Element Accumulation
Sex Chromosomal Transposable Element Accumulation

... al. 1996; Kapitanov and Jurka 1996; Mighell, Markham, and Robinson 1997). The numbers of transitional and transversional differences from the consensus sequence of each Alu class were counted, and divergences were corrected for multiple substitutions (Kimura 1980). To allow autosomal comparison, 172 ...
HGNC future plans
HGNC future plans

DNA - Buck Mountain Central School
DNA - Buck Mountain Central School

... Deletion – is a mutation which occurs when nucleotides are removed from the DNA sequence. Insertion – is the placement if an extra nucleotide in a DNA sequence. Frameshift mutation – a mutation that causes the reading frame of codons to change. Translocation – the transfer of a fragment of DNA from ...
GMO answerkey
GMO answerkey

... molecules are then brought together and the molecules ligated together using DNA ligase. Plasmids are circular DNA molecules present in bacteria that are self-replicating and which can “carry” a number of other genes, including genes obtained from another organism. The plasmids replicate along with ...
SCIENCE - GENETICS
SCIENCE - GENETICS

... are produced from mitosis go through one more cell division…BUT THERE IS NO REPLICATION OF THEIR DNA (there is only one interphase!). As a result, the chromosome pairs of the two cells get separated and the two cells become four cells – each cell has only 23 chromosomes or half the amount of chromos ...
LabelFree Detection of Few Copies of DNA with Carbon Nanotube
LabelFree Detection of Few Copies of DNA with Carbon Nanotube

... The Z-maps shift only slightly in this case. To understand the sensor response, it is worth and b) phase Z-maps for various concentrations of complementary target DNA. taking a closer look at the specificity of the sensor After each exposure of the sensor to target DNA, the hybrids were melted to re ...
chapter12a
chapter12a

... code? Why or why not? How do the proteins made affect the type and function of cells? Cells do not make all of the proteins for which they have genes (DNA). The structure and function of each cell are determined by the types of proteins present. 2. Consider what you now know about genes and protein ...
Molecular phylogeny, part B
Molecular phylogeny, part B

... common ancestor phylogenetic construction methods will always produce a tree but the tree will not be of any biological relevance. This type of error commonly occurs when undertaking homology analysis to assign functions to newly generated gene sequences. Blast is used extensively as on of the homol ...
A-level Biology B Question paper Unit 2 - Genes and Genetic
A-level Biology B Question paper Unit 2 - Genes and Genetic

... (b) Spindle fibres are polymers made from tubulin monomers. The removal of tubulin monomers causes spindle fibres to shorten. Scientists investigated the effect of the rate of tubulin removal on the speed of movement of chromatids during mitosis. The results are shown on the graph. ...
Gene Trees, Populations and the Microbial Species Concept
Gene Trees, Populations and the Microbial Species Concept

... are needed to see this picture. ...
EAWAG news 56e: Genomic Islands and Horizontal Gene Transfer
EAWAG news 56e: Genomic Islands and Horizontal Gene Transfer

... integrase gene as indicator for the subsequent excision and transfer of the clc element. Therefore, Vladimir Sentchilo focused on the gene for the integrase and constructed specific reporter bacteria (similar to the arsenic biosensor, see p. 12). These reporter bacteria carried a molecular switch co ...
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Helitron (biology)

A helitron is a transposon found in eukaryotes that is thought to replicate by a so-called ""rolling-circle"" mechanism. This category of transposons was discovered by Vladimir Kapitonov and Jerzy Jurka in 2001. The rolling-circle process begins with a break being made at the terminus of a single strand of the helitron DNA. Transposase then sits at this break and at another break where the helitron targets as a migration site. The strand is then displaced from its original location at the site of the break and attached to the target break, forming a circlular heteroduplex. This heteroduplex is then resolved into a flat piece of DNA via replication. During the rolling-circle process, DNA can be replicated beyond the initial helitron sequence, resulting in the flanking regions of DNA being ""captured"" by the helitron as it moves to a new location.
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