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fix my dna text
fix my dna text

... Protein structure is determined by the DNA base code. Proteins are made from lots of amino acids joined together. Each amino acid is coded by the sequence (order) of three bases. For example, GGT codes are found in glycine but TCA codes are found in serine, a different amino acid. The sequence of ba ...
Practice questions for exam 3
Practice questions for exam 3

... DNA in your chromosomes is composed of _______. a. amino acids b. nucleotides c. nucleic acid d. glycogen e. both b and c are correct ...
October 4, 2007
October 4, 2007

... a. 3', a methylated GTP in reverse orientation b. 3', poly-adenosine c. 5', a methylated GTP in reverse orientation d. 5', poly-adenosine 25. Transcription factors share what common features? a. all activate transcription b. all contain trans-activation sites c. all act alone d. all bind RNA ...
Ch 11- Controlling Gene Expression
Ch 11- Controlling Gene Expression

... sequences; sequences that regulate far from gene – DNA bends and TF’s bind to create an area where RNA pol can bind to – Silencers- are sequences that repressors bind to; stop transcription initiation • Coordinating gene expression- eukaryotes rarely have operons, so enhancer sequences and transcrip ...
DNA ends!
DNA ends!

... Cytogenetic analysis of metaphase spreads demonstrates the presence of the fragile .)site in less than 60% of cells in most affected individuals. In 1991, the fragile X gene (FMR1) was characterized and found to contain a tandem repeated trinucleotide sequence (CGG) near its 5' end. The mutation res ...
Changes in signal transduction pathways can alter
Changes in signal transduction pathways can alter

... – Made of nucleotides, covalent bonds – DNA- deoxyribose; RNA- ribose – DNA- Thymine; RNA- Uracil – DNA double stranded; RNA single ...
RT-PCR lab
RT-PCR lab

壹 - 國立彰化師範大學圖書館
壹 - 國立彰化師範大學圖書館

... 35. Which of the following events would mostly likely occur immediately following activation of a receptor tyrosine kinase by its ligand? (A) activation of a G protein (B) stimulation of an adenylyl cyclase (C) auto-phosphorylation of the receptor itself (D) stimulation of a guanylyl cyclase 36. Whi ...
RNA polymerase
RNA polymerase

...  Ribosome moves down mRNA by 1 codon.  A third tRNA anticodon binds to the next mRNA codon. ...
Gene Section THRAP3 (thyroid hormone receptor associated protein 3)
Gene Section THRAP3 (thyroid hormone receptor associated protein 3)

... SNIP1 (Smad nuclear interacting protein 1), pinin and SkIP (Ski-interacting protein) to form the SNIP1/SkIPassociated RNA processing (SNARP) complex. The SNARP regulates the expression level of cyclin D1 probably by recruiting U2AF65 to its pre-mRNA (Bracken et al., 2008; Witzel et al., 2010). To da ...
A Nucleotide Consists of what three parts?
A Nucleotide Consists of what three parts?

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02/04

suggested essay-type questions for next exam
suggested essay-type questions for next exam

... “unwind” these supercoils. (You will have to look at the definition of the linking difference. In this definition, Lo refers to the linking number for relaxed B-DNA. This number reflects the number of base pairs that stack in one helical turn. Does this number change when ethidium bromide is interca ...
DNA and Chromosomes
DNA and Chromosomes

... What is the relationship between DNA, chromosomes, and any organism? Drag and drop the descriptive phrase to the correct column, thereby helping us to describe the relationships between these important components of inheritance. ...
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File - Ms. Pennington Pre

... 2. How do DNA-binding proteins in prokaryotes regulate genes? ...
Unit 4 Objectives
Unit 4 Objectives

...  List the differences and similarities between DNA and RNA  Be able discuss the functions, structures and locations of the three main types of RNA: messenger RNA, ribosomal RNA, and transfer RNA ...
Name:
Name:

...  Biotechnology v. DNA technology v. recombinant DNA technology  Goals/uses of transformation & genetic engineering: o significance of plasmids, restriction enzymes & ligase, “sticky ends”  GMOs: production, uses, controversy  Animal cloning: process, controversy  DNA technology o PCR o Electrop ...
Sample Exam #2 ( file)
Sample Exam #2 ( file)

... For a complete translation (including termination) of a protein synthesis containing 330 amino acids would require an mRNA coding region of ____________ bases long. A. 993 B. 663 C. 660 D. 330 E. 990 ...
AP Biology Basics: From Gene to Protein
AP Biology Basics: From Gene to Protein

... to Protein ...
1 - life.illinois.edu
1 - life.illinois.edu

... b. transcription factors in early development of Drosophila. c. inactivation of one X chromosome in female mammals. d. oncogenes implicated in promoting tumors and cancer. 28. In eukaryotic cells the DNA is organized into nucleosomes by a group of proteins called a. histones. b. hemoglobins. c. acti ...
REGULATION OF GENE EXPRESSION
REGULATION OF GENE EXPRESSION

... GENE EXPRESSION IN EUKARYOTES ...
DNA Worksheet
DNA Worksheet

... 23. Use the amino acid chart in your notes to translate the sequence of codons (from #16) and write the ...
Gene Expression
Gene Expression

... RNA molecule is not needed to produce the polypeptide. The sections of m RNA which do not code for translation of polypeptide are called introns. ...
doc
doc

... on from one generation of cells to the next. Made of DNA and protein Codon — a set of three mRNA nucleotides that codes for an amino acid or signals the end of an amino acid sequence DNA — deoxyribonucleic acid. A chain of nucleic acid molecules that contains your genetic information DNA fingerprint ...
DNA and proteins
DNA and proteins

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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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