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Heredity - El Camino College
Heredity - El Camino College

... A. A __________ is a photograph of all the chromosomes from a cell arranged by homologous pairs in a fixed order. B. __________ are alternate forms of a ______ in the same position on a pair of homologous chromosomes, and affecting the same trait. C. Alleles are represented by paired __________ (e.g ...
Document
Document

... the protein 100–200 amino acids long encoded by a specific DNA sequence (exon) Quaternary - forms when two or more polypeptide chains associate to form a functional protein ...
Organic Compounds: Carbohydrates
Organic Compounds: Carbohydrates

...  Hydrogen bonds are critically important in maintaining structure, but are fragile & easily broken by heat and pH changes  When the 3 dimensional structure is destroyed, called denatured proteins, no longer can perform their roles (function depends on structure)  active sites – are structure on t ...
PDF format Glossary of Search Items
PDF format Glossary of Search Items

... • 3’UTR variation • 5’UTR variation • intronic variation Mutation / polymorphism: Asks whether the sequence variation described is likely to be a mutation (capable of causing a diseased phenotype), a polymorphism (not capable of causing a diseased phenotype) or a silent polymorphism (a variation in ...
From Gene to Protein
From Gene to Protein

...   The discovery of ribozymes rendered obsolete the belief that all biological catalysts were proteins.   Three properties of RNA enable it to function as an enzyme: ...
Interfering with the genome: A new generation of disease treatments
Interfering with the genome: A new generation of disease treatments

... a benign virus engineered to target a particular organ or tissue. In the case of the viral delivery vehicle, the iRNA drug is actually produced in the cell, which could potentially make it much more durable and effective, although appropriate dosing can be challenging. This approach may be particula ...
Problems in Protein Biosynthesis - The Journal of General Physiology
Problems in Protein Biosynthesis - The Journal of General Physiology

... complex binds phenylalanyl-tRNA. A single codon, a triplet, is sufficient to direct specific binding of aminoacyl-tRNA to the ribosome (27). The growing polypeptide chain, which is bound to tRNA through its terminal carboxyl group, seems to be attached to the 50S subunit (28). This attachment is not ...


... electrophoresis to compare DNA fragments ...
Characterisation of a Non-canonical Genetic Code in
Characterisation of a Non-canonical Genetic Code in

... All non-canonical codes differ from the standard code only slightly, showing beyond any doubt that they have evolved by making small changes to the standard code. Various models have been suggested to explain how changes to the genetic code can be made, the most widely discussed being the codon-capt ...
RACC BIO transcription and translation
RACC BIO transcription and translation

... o The sequence of DNA nucleotides that codes for a eukaryotic polypeptide is usually not continuous; it is split into segments o These noncoding segments are called introns o Other regions, usually translated into amino acid sequences are called exons. o Introns are cut out and the exons are joined ...
You Asked for it….. - Mr. Smith’s Science Page
You Asked for it….. - Mr. Smith’s Science Page

... electrophoresis to compare DNA fragments ...
Note 1
Note 1

... • To understand the nature of the computational problem involved, we will consider an oversimplified model of ...
Bioinformatics - Rebecca Waggett
Bioinformatics - Rebecca Waggett

... • Once the section of DNA has been sequenced, genes are found using pattern recognition. • They look for a start codon downstream of a Shine-Delgarno (prokaryotes) or Kozak (eukaryotes) consensus sequence. • Then looks for the potential stop codons as well as introns and exons (eukaryotes) ...
Biochemistry (Inorganic) and Nature of Science Review
Biochemistry (Inorganic) and Nature of Science Review

... 12. Contrast saturated and unsaturated fats in terms of chemical structure (which only has single bonds between carbons, which has some double bonds), state of matter at room temperature (solid vs. liquid), from what type of organisms these are made (plant vs. animal), and example for each. ...
Changes in the genetic material (DNA)
Changes in the genetic material (DNA)

... Can be an insertion in which one base is inserted in the DNA sequence. Can be a deletion in which one base is deleted in the DNA sequence. DNA: TAC GCA TGG AAT mRNA: AUG CGU ACC UUA Amino Acid: Met - Arg - Thr - Leu DNA: TAT CGC ATG GAA T mRNA: AUA GCG UAC CUU A Amino Acid: Iso - Ala - Tyr - Leu ...
4 chapter_test_b 4 chapter_test_b
4 chapter_test_b 4 chapter_test_b

... Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used. ...
PPT - CBE Project Server
PPT - CBE Project Server

... o the configuration of these amino acids is very important in determining the function that a protein performs ...
Four Types of Organic Molecules
Four Types of Organic Molecules

... Insulin is a hormone that helps your body use glucose. ...
Transcription & Translation
Transcription & Translation

... a. AGC TAA CCG  (DNA) UCG AUU GGC  (RNA) 3. RNA strand breaks free, leaves nucleus, heads to ribosome ...
III B.Sc. (CHEMISTRY) MODEL CURRICULUM FOR
III B.Sc. (CHEMISTRY) MODEL CURRICULUM FOR

... Introduction: Definition of Amino acids, classification of Amino acids into alpha, beta, and gama amino acids. Natural and essential amino acids – definition and examples, classification of alpha amino acids into acidic, basic and neutral amino acids with examples. Methods of synthesis: General meth ...
Chapter 14 Overview: The Flow of Genetic Information
Chapter 14 Overview: The Flow of Genetic Information

... Each codon specifies which one of the 20 amino acids will be incorporated at the corresponding position  along a polypeptide.  Because codons are base triplets, the number of nucleotides making up a genetic message must be three  times the number of amino acids making up the protein product.  It tak ...
What do I need to know for the test?
What do I need to know for the test?

... How is the number of phenotypes related to the number of genes that control the trait? What type of distribution curve can be seen with polygenic inheritance? Tell the 3 ways natural selection can affect the distributions of phenotypes in a bell-shaped curve? Be able to identify examples of each of ...
p53 gene mutation: software and database
p53 gene mutation: software and database

... involved in both monogenic and polygenic disorders, including complex diseases such as cancer (1). Furthermore, for each of these genes, numerous and varied types of alterations have been described, ranging from point mutations to large deletions. A record of the mutations in these various genes ser ...
AS and A2 Biology resource
AS and A2 Biology resource

... A resource for A-level Biology students studying the digestive system. It could be used as an extension or homework task. Learning Objectives 1. Compare and discuss the anatomical differences of the digestive tract from different domestic species and relate these differences to their functions. 2. D ...
Amino Acid Metabolism (day-2)
Amino Acid Metabolism (day-2)

... Tyrosine is also the precursor to pigment molecules called melanins that are produced from dopaquinone ...
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Genetic code



The genetic code is the set of rules by which information encoded within genetic material (DNA or mRNA sequences) is translated into proteins by living cells. Biological decoding is accomplished by the ribosome, which links amino acids in an order specified by mRNA, using transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA three nucleotides at a time. The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries.The code defines how sequences of these nucleotide triplets, called codons, specify which amino acid will be added next during protein synthesis. With some exceptions, a three-nucleotide codon in a nucleic acid sequence specifies a single amino acid. Because the vast majority of genes are encoded with exactly the same code (see the RNA codon table), this particular code is often referred to as the canonical or standard genetic code, or simply the genetic code, though in fact some variant codes have evolved. For example, protein synthesis in human mitochondria relies on a genetic code that differs from the standard genetic code.While the genetic code determines the protein sequence for a given coding region, other genomic regions can influence when and where these proteins are produced.
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