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Unit VII Study Guide KEY
Unit VII Study Guide KEY

... _sticky_____ ends. Following enzyme exposure and the addition of the glue, __DNA ligase____, there are three possible outcomes. Some of the bacterial DNA pieces will simply re-join in their original conformation; that will also occur with the DNA containing the gene of interest. However, some of the ...
Bioinformatics Protein Synthesis Amino Acid Table Amino Acids
Bioinformatics Protein Synthesis Amino Acid Table Amino Acids

... • lacPI· promoter for fucl • lacP - promoter for lac operon • lacO - operator: binding site for the repressor Lad is a repressor that binds to the promoter (lacp) and prevents the gene from being transcribed. This type of control is known as ...
Lab/Activity: Prot
Lab/Activity: Prot

... one version of nucleic acid language (DNA code) to another version of nucleic acid language (RNA code), so it is like transcribing from the key of G to the key of C in music. Before leaving the nucleus, this primary mRNA transcript is modified in several ways. Introns (intervening non-coding units) ...
Genetics Study Guide
Genetics Study Guide

... 14. When a plant fertilizes itself, it is called ______________. 15. What is it called when cells are copied with half the number of chromosomes? 16. What factors have an influence on your traits? 17. Why do sex-linked disorders occur more often in males? 18. Three bases code for one ______. 19. Wha ...
Eukaryotic gene control
Eukaryotic gene control

...  evolved to grow & divide rapidly  must respond quickly to changes in external environment ...
LOCALIZATION OF A MOLECULE
LOCALIZATION OF A MOLECULE

Plant Biotechnology
Plant Biotechnology

... Shoot in gene of interest and a gene marker (reporter) ...
Protein Synthesis Powerpoint
Protein Synthesis Powerpoint

... - Eukaryotic mRNA is “processed” before leaving the nucleus. - This does NOT happen in prokaryotes. ...
Topic 3 The chemistry of life
Topic 3 The chemistry of life

... pairing. The result is two strands where only one was first present. 50. DNA polymerase is an enzyme that allows the connection between nucleotides lined up by base-pairing. 51. This replication is called semi-conservative replication because each of the two formed molecules of DNA contains one of t ...
2.7 Review - Peoria Public Schools
2.7 Review - Peoria Public Schools

... pairing. The result is two strands where only one was first present. 50. DNA polymerase is an enzyme that allows the connection between nucleotides lined up by base-pairing. 51. This replication is called semi-conservative replication because each of the two formed molecules of DNA contains one of t ...
AP Protein Synthesis Quiz
AP Protein Synthesis Quiz

... a. many genes code for proteins that are not enzymes. b. a single gene codes for a single polypeptide chain, and many enzymes are made up of more than one polypeptide chain. c. many genes code for RNA molecules that have no enzymatic activity. d. A and B only e. A, B, and C 2. Which of the following ...
Microbiology Exam II - University of Evansville Faculty Web sites
Microbiology Exam II - University of Evansville Faculty Web sites

... 6. Which of the following best describes a plasmid? a. A gene within the chromosome b. Small circular piece of DNA outside the chromosome c. The genetic material of a bacteriophage d. Part of bacterial ribosomes e. A single, linear strand of DNA 7. Which of the following is NOT involved in bacteria ...
Gene Regulation in Eukaryotes - Bremen High School District 228
Gene Regulation in Eukaryotes - Bremen High School District 228

From DNA to Protein
From DNA to Protein

... Specific sequences of nucleotides in the DNA indicate where transcription of a gene begins and ends 15.3 PRODUCTION OF mRNAs IN EUKARYOTES Eukaryotic protein-coding genes are transcribed into precursor-mRNAs that are modified in the nucleus Introns are removed during pre-mRNA processing to produce t ...
Genetics Unit Study guide
Genetics Unit Study guide

... What is RNA made of? What is the name for the sugar in RNA nucleotides? What type of structure is an RNA strand? How many RNA nucleotide bases are there? What are their names? What types of RNA are there? What is the function of each type of RNA? How is mRNA made? Where is mRNA made? What is transcr ...
DNA Vocabulary Study Option
DNA Vocabulary Study Option

... The following document is a running list of vocabulary terms for the Carbohydrate, Lipid and Protein unit for Biology. The unit is one of the larger units and contains a lot of vocabulary to keep straight. In order the help the students I have created this study option for home. ...
Control of Gene Expression
Control of Gene Expression

... repressor, and transcription occurs) ...
HomeworkCh7
HomeworkCh7

... d. What are the three main phases of RNA synthesis? e. Can more than one copy of the gene be copied at the same time? 6. Translation a. What is translation? Why do you think it’s called that? b. How many different codons are possible for providing a three nucleotide code for the amino acids? Take a ...
Slide 1
Slide 1

... • What form does DNA take in the nucleus? • chromosome • How do the 150 million base pairs that make up the human genome fit into the nucleus? • wrapped around histones • coiled and supercoiled chromatin condenses into chromosomes ...
Micro Quiz #3R Stu F2011 - the Biology Scholars Program Wiki
Micro Quiz #3R Stu F2011 - the Biology Scholars Program Wiki

... 4. AT-rich DNA strands will denature (separate) at a(n): A. Higher temperature than GC-rich DNA B. Identical temperature as GC-rich DNA C. Similar temperature as GC-rich DNA, with minor variations D. Lower temperature than GC-rich DNA E. Temperature dependent upon whether it is from a prokaryote or ...
FROM DNA TO PROTEINS: gene expression Chapter 14 LECTURE
FROM DNA TO PROTEINS: gene expression Chapter 14 LECTURE

... Introns and exons appear in the primary mRNA transcript—pre-mRNA; introns are removed from the final mRNA EUKARYOTIC GENES HOW INTRONS WERE DISCOVERED in Processing mRNA In the nucleus, pre-mRNA is modified at both ends: G cap is added at the 5′ end (modified guanosine triphosphate)—facilitates mRNA ...
DNA.Protein.Synthesis Notes
DNA.Protein.Synthesis Notes

... 12.1 In the nucleus, the DNA helix unzips • And RNA polymerase lines up nucleotides along one strand of the DNA, following the base pairing rules ...
1. A 6-frame translation map of a segment of DNA is shown, with
1. A 6-frame translation map of a segment of DNA is shown, with

... transcribed at the time that the electron microscopy was done. [That's plausible... any given gene may be transcribed only some of the time, so it's quite possible that this gene was not being transcribed at the time the sample was collected.] 3. This question concerns a mutation in a gene that crea ...
Genetics Science Learning Center
Genetics Science Learning Center

... What is DNA? 2. What does DNA stand for? __________________________________________________ 3. Why is DNA called a blueprint? __________________________________________________________ 4. The "twisted ladder" shape of the DNA molecule is called a _________________________________ 5. Name the four ba ...
Gen.1303 Genome: The total genetic content contained in a haploid
Gen.1303 Genome: The total genetic content contained in a haploid

... A hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes. Chromatin: A complex of nucleic acids and proteins, primary histones, in the cell nuc ...
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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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