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D = 60% = 390 points
D = 60% = 390 points

... confirmed by allelic variants and which occupies a specific gene locus. A gene is a DNA sequence coding for a single polypeptide, t-RNA or r-RNA. Characteristics needed of the carrier of genetic information:  Highly accurate replication  storage  transmission  Large carrying capacity  Be capabl ...
Human Gene Therapy
Human Gene Therapy

...  can infects a broad range of cells  Can insert genetic material at a specific site on chromosome19 with near 100% certainty Drawbacks  A small virus, carrying only 2 genes in its natural state  can produce unintended genetic damage because the virus inserts its genes directly into host cell’s D ...
DNA - The Double Helix
DNA - The Double Helix

... how? It is the sequence of bases that determine which protein is to be made. The sequence is like a code that we can now interpret. The sequence determines which proteins are made and the proteins determine which activities will be performed. That is how the nucleus is the control center of the cell ...
Biology 155 Practice Exam 3 Name 1. Crossing
Biology 155 Practice Exam 3 Name 1. Crossing

... 28. If you were to allow a culture of bacteria to replicate for many generations in a medium containing heavy nitrogen (15N) and then transferred a sample of your culture to a medium containing light nitrogen (14N) and allowed the cells to replicate their DNA exactly 2 times, what proportion of the ...
DNA and Protein Synthesis
DNA and Protein Synthesis

... Thymine – Also contains the other 3 bases…what are they? ...
Seisenberger
Seisenberger

... 1. 2 main phases of demethylation in PGCs 2. Combination of passive + active maintenance of methylation during global demethylation 3. Global erasure does not mean indiscriminate transcription- some other mechanism controls this ...
A-level Human Biology Question paper Unit 2 - Making Use of
A-level Human Biology Question paper Unit 2 - Making Use of

... 6 Scientists have discovered that some fungi produce an extracellular enzyme called laccase. The substrate of this enzyme is lignin, a substance found in wood fibre. Laccase can be used to stick wood fibres together to make fibreboard. (a) The fungus is grown in a large fermenter. Describe how a pur ...
Nucleic acids and protein synthesis
Nucleic acids and protein synthesis

... Transcription factors – proteins that help regulate gene expression by binding DNA promoter/enhancer sequences and blocking or activating transcription.  Promoter/enhancer – sequences of DNA with binding sites for multiple transcription factors. ...
Transgenic Corn
Transgenic Corn

... Spider silk is the strongest natural fiber known to science. It is tougher than Kevlar, stretches better than nylon, and is five times stronger than steel (weight for weight). A spider gene was incorporated into the DNA of a goat embryo. The gene codes for the synthesis of a protein found in spider ...
The Blueprint of Life, From DNA to Protein
The Blueprint of Life, From DNA to Protein

... RNA molecule called transcript  Numerous transcripts can be produced from one chromosome ...
DNA
DNA

... • The hydroxy and carbonyl groups of monosaccharides can react intramolecularly to give cyclic form: ...
honors biology Ch. 10 Notes DNA
honors biology Ch. 10 Notes DNA

... 10.3 Explain how Chargaff’s rules relate to the structure of DNA. A=T, C=G 10.4 Explain how the structure of DNA facilitates its replication. ...
A summary of the flow of genetic information in protein synthesis is
A summary of the flow of genetic information in protein synthesis is

... mature mRNA transcript, new mRNA transcript, anticodon, amino acids, ribosom e-mRNA complex. Complete the exercise by matchirig`and entering-t -a letter-of-thedescription in the parenth ...
Amino Acids in Data Encryption
Amino Acids in Data Encryption

... single DNA molecule is double stranded and has sequences of four bases: adenine (A), thymine (T), cytosine (C), and guanine (G). ...
Sunday, Oct - Okemos Public Schools
Sunday, Oct - Okemos Public Schools

... us profoundly different from chimpanzees and make a chimp in a business suit seem so deeply ridiculous--are somehow encoded within minute fractions of our genetic code. Nobody yet knows precisely where they are or how they work, but somewhere in the nuclei of our cells are handfuls of amino acids, ...
Chromosome, genes and DNA Task 1 chromos
Chromosome, genes and DNA Task 1 chromos

3.3 DNA Structure
3.3 DNA Structure

... Nucleotide Polymers  Nucleotide polymers are linked together to build a polynucleotide  Adjacent nucleotides are joined by covalent bonds that form between the —OH group on the 3 carbon of one nucleotide and the phosphate on the 5 carbon on the next  These links create a backbone of sugar-phos ...
What is DNA? - mrgscience.com
What is DNA? - mrgscience.com

... passed on to new cells formed by mitosis. During replication, the DNA double helix untwists, and the bonds between the nitrogen bases of each rung break. Nucleotides are normal constituents of cells, and as the DNA double helix splits apart, free nucleotides link up to matching nucleotides of each D ...
How We Became Human: What Makes Us Different
How We Became Human: What Makes Us Different

... Still, the principle of gene-by-gene comparison remains a powerful one, and just a year ago geneticists got hold of a long-awaited tool for making those comparisons in bulk. Although the news was largely overshadowed by the impact of Hurricane Katrina, which hit the same week, the publication of a r ...
Eukaryotic Gene Expression Practice Problems Class Work 1
Eukaryotic Gene Expression Practice Problems Class Work 1

... organism and are the molecular machines that direct the form and function of a cell. They act as enzymes that facilitate chemical reactions, prove structure and support, and facilitate the cell-to-cell and intracellular communication necessary for complex eukaryotic organisms to function properly. 6 ...
Eukaryotic Gene Expression Practice Problems Class Work 1
Eukaryotic Gene Expression Practice Problems Class Work 1

... organism and are the molecular machines that direct the form and function of a cell. They act as enzymes that facilitate chemical reactions, prove structure and support, and facilitate the cell-to-cell and intracellular communication necessary for complex eukaryotic organisms to function properly. 6 ...
Chapter 14: DNA Structure and Function
Chapter 14: DNA Structure and Function

... origins of replication, where the two DNA strands are separated, opening up a replication “bubble” A eukaryotic chromosome may have hundreds or even thousands of origins of replication Replication proceeds in both directions from each origin, until the entire molecule is copied ...
DNA - Bio by Aguayo
DNA - Bio by Aguayo

... Deoxyribonucleic acid Contains the instructions for making proteins from 20 different amino acids Structure discovered by Watson & Crick in 1953 Sides made of pentose (5-sided) sugars attached to phosphate groups by phosphodiester bonds Pentose sugar called Deoxyribose Steps or rungs of DNA made of ...
Transcription and Translation
Transcription and Translation

... don’t appear in the final mRNA molecule. Protein-coding sections of a gene (called exons) are interrupted by introns. • The function of introns remains unclear. They may help is RNA transport or in control of gene expression in some cases, and they may make it easier for sections of genes to be shuf ...
DNA is
DNA is

... made THYMINE  URACIL (something the RNA understands better) ...
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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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