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Chem 317 Exam II
Chem 317 Exam II

... 2. A DNA polymerase is an enzyme that catalyzes the polymerization of DNA into a DNA strand using a DNA template. RNA polymerase, also known as DNA-dependent RNA polymerase, is an enzyme that produces RNA using a DNA template. DNA polymerase requires _____________, to initiate DNA synthesis from the ...
Chapter 2 - rci.rutgers.edu
Chapter 2 - rci.rutgers.edu

DNA, genes and chromosomes
DNA, genes and chromosomes

... activities of the genes. A strand 150 to 200 nucleotides long is wrapped twice around a core of eight histone proteins to form a structure called a nucleosome. The histone octamer at the centre of the nucleosome is formed from two units each of histones H2A, H2B, H3, and H4. The chains of histones a ...
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Ch 13 Genetic Engineering

... the DNA code of a living organism • Extract DNA from cells • Cutting DNA with restriction enzymes • Separate DNA using gel electrophoresis • Identify the sequence using different dyes that attach to nitrogen bases • Make copies using polymerase chain reaction ...
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... 1. Suppose that an infectious agent such as a virus or bacteria had surface antigens identical to those displayed on the surface of human cells. Would the immune system be able to detect and destroy these agents? Why or why not? 4 points No. Would not recognize them as non-self due to T-cell selecti ...
Genetic Engineering
Genetic Engineering

... specific places 2. Vectors transfer the donor DNA into the host a. mechanical vectors = Carry DNA into a cell, micropipette or metal bullet b. biological vectors = virus or bacterial plasmid (____small rings of DNA_____) 3. If host and foreign DNA have been cleaved by the same restriction enzyme, th ...
DNA TECHNOLOGY - Mount Mansfield Union High School
DNA TECHNOLOGY - Mount Mansfield Union High School

... This would enable scientists to work with new lines of embryonic stem cells derived using public funding. ...
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DNA intro review - Ms Kim`s Biology Class

... 1. A nucleotide is made of three parts: a ___________________ group, a five carbon __________________, and a ...
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... is located near the transcription start site (+114). This potential peptide sequence shows homology to a 180-amino-acid human protein. However, it is not clear yet if pri-MIRN21 functions as an mRNA as well. Figure 1. B: Stem-loop structure of MIRN21. ...
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... of linear, positive-sense, single-stranded RNA genomes of 7 to 11 kilobases. • RNA genome is retro-transcribed into linear double-stranded DNA and integrated into the cell chromatin. • All retroviral genomes have two long terminal repeat (LTR) sequences at their ends. ...
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... PLASMID: A circular double-stranded DNA molecule that replicates in bacteria and is separate from the bacterial genome • engineered to contain only sequences needed to function as a DNA cloning vector: • a bacterial origin of replication (ori) • an antibiotic resistance gene (eg. B-lactamase confers ...
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Lecture 1 - Graham Ellis

... Why is DNA important? 1. DNA contains the instructions needed to construct other components of cells such as protein and RNA. 2. There are 20 different kinds of amino acid that combine to make proteins. There are many possible combinations, resulting in many different types of protein. 3. The cell ...
DNA Ligase Joke (insert laughter here)
DNA Ligase Joke (insert laughter here)

... following replication-both strands are identical—recall semi-conservative:— each new DNA double-helix has one parental strand and one newly-formed strand No enzyme activity necessary ...
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... of …protein known as a "transport protein." The gene that controls increased production of the transport protein was taken from Arabidopsis, a relative of the cabbage …. The transport protein uses energy available in the cells to move salt – in the form of sodium ions -- into compartments within the ...
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... protein and from what you’ve picked up at various points in your travels, you already have a pretty good idea of the answer. To those who grappled with the question in the early part of the century, the answer was far from clear. Here are some possible ...
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... The course of PCR (amount of doublestranded DNA) is monitored using a specific fluorescent dye N ...
BIOINFORMATICS AND GENE DISCOVERY
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No Slide Title

Response to the Environment Model Checklist
Response to the Environment Model Checklist

... 4) In the cytoplasm, ribosomes then translate all of these different mRNAs into all of the different proteins that can then go on to do their jobs in the cell. Show the details of a generic example either in your story or off to the side. [Not only does the cell have to double all of its proteins an ...
The abundance and cell cycle dependent expression of the mRNA
The abundance and cell cycle dependent expression of the mRNA

... is significantly lower than that of actin or any of the histones (23). The low level of HMG-17 protein in cells could be due to rapid protein turnover as indicated by the pulse labelling experiments presented in fig 3. Exponentially growing HeLa cells were labelled with 3 H Lysine for 15 minutes and ...
Chapter 12.5
Chapter 12.5

... • THE PROMOTER REGION IS WHERE RNA POLYMERASE CAN ATTACH AND START TRANSCRIPTION. • THERE IS ANOTHER REGION CALLED THE OPERATOR. THIS CONTAINS A PROTEINS CALLED A LAC REPRESSOR. IF THE LAC REPRESSOR IS ATTACHED TO THE DNA THE GENE IS TURNED OFF. • THE REPRESSOR WILL BE ON DNA UNLESS LACTOSE IS PRESE ...
to view fulltext PDF - Indian Academy of Sciences
to view fulltext PDF - Indian Academy of Sciences

... The transfer of information from DNA to protein (gene expression) involves remarkable biomolecular machines, such as the RNA polymerase to transcribe and the ribosome to translate genetic information. The various molecular processes involved in gene expression include – the assembly of transcription ...
AS 90715 version 2 Describe the role of DNA in relation to gene
AS 90715 version 2 Describe the role of DNA in relation to gene

... Concepts and processes relating to gene expression include: ‰ the role of DNA in gene expression: selected from o nucleic acid structure and function o protein structure and function o the genetic code o DNA replication o protein synthesis (transcription, translation) ‰ allele interactions: selected ...
Name:
Name:

... tRNA mRNA Transcription Translation Mutagen Codon 17. You your codon chart to identify the following amino acid: AUG ____________ ...
< 1 ... 354 355 356 357 358 359 360 361 362 ... 498 >

Primary transcript



A primary transcript is the single-stranded ribonucleic acid (RNA) product synthesized by transcription of DNA, and processed to yield various mature RNA products such as mRNAs, tRNAs, and rRNAs. The primary transcripts designated to be mRNAs are modified in preparation for translation. For example, a precursor messenger RNA (pre-mRNA) is a type of primary transcript that becomes a messenger RNA (mRNA) after processing.There are several steps contributing to the production of primary transcripts. All these steps involve a series of interactions to initiate and complete the transcription of DNA in the nucleus of eukaryotes. Certain factors play key roles in the activation and inhibition of transcription, where they regulate primary transcript production. Transcription produces primary transcripts that are further modified by several processes. These processes include the 5' cap, 3'-polyadenylation, and alternative splicing. In particular, alternative splicing directly contributes to the diversity of mRNA found in cells. The modifications of primary transcripts have been further studied in research seeking greater knowledge of the role and significance of these transcripts. Experimental studies based on molecular changes to primary transcripts the processes before and after transcription have led to greater understanding of diseases involving primary transcripts.
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