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DNA

Pearson Ch 16 - The Molecular Basis of Inheritance

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Biology
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DNA
Molecular genetics
Genetics
nucleic acids
Okazaki fragments
Semiconservative replication
Chromatin
Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid
Nucleic acid double helix
Base pair
D-loop
Telomere

16 - The Molecular Basis of Inheritance Ch. 16: The Molecular Basis of Inheritance Concept 16.1: DNA is the genetic material Early in the 20th century, the identification of the molecules of inheritance loomed as a major challenge to biologists When T. H. Morgan?s group showed that genes are located on chromosomes, the two components of chromosomes?DNA and protein?became candidates for the genetic material A chromosome consists of a DNA molecule packed together with proteins The bacterial chromosome is a double-stranded, circular DNA molecule associated with a small amount of protein Eukaryotic chromosomes have linear DNA molecules associated with a large amount of protein In a bacterium, the DNA is ?supercoiled? and found in a region of the cell called the nucleoid

Raven Biology Chapter 3 Notes

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Biology
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Genetics
nucleic acids
Biotechnology
Molecular biology
biochemistry
Biomolecule
DNA
RNA
Carbohydrate
Base pair
Adenosine triphosphate
Genetic code

Gavin Morgan 9/11/2015 Chapter 3 2-Point Notes Carbon: The Framework of Biological Molecules Functional groups account for differences in molecular properties: 1. Carbon and hydrogen atoms have similar electronegativities, therefore, their electrons are evenly distributed. 2. Other molecules are polar, which causes other molecules to attach. Isomers have the same molecular formulas but different structures: 1. Isomers have the same molecular formula but exist in different forms. 2. Enantiomers are isomers that are mirror images of each other. Biological macromolecules include carbohydrates, nucleic acids, proteins, and lipids:

Analysis of Two Important American Inventions from the 1950's

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US History
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Biotechnology
DNA
nucleic acids
Helices
Molecular genetics
Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid
Nucleic acid double helix
Genetics
Maurice Wilkins
Francis Crick

A major technological advancement in the 1950?s that changed culture was the development of the hydrogen bomb by the U.S. and later the USSR. This discovery created an atmosphere of fear of nuclear annihilation and resulted in an arms race. Each country fought to create bigger and better bombs and delivery systems. Public service announcements prepared the world for a nuclear war in which both nations would face large-scale, probably suicidal, retaliation strikes. Movies such as Godzilla came to feature monsters mutated by nuclear testing. Movements were founded to fight for global disarmament. Comment by Erin Bohn: 25/25 https://www.youtube.com/watch?v=r0dUIq8gHgc

quiz 3

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Biology
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Genetics
DNA
Biotechnology
Biomolecules
Functional Groups
Hydroxyl
Carboxylic acid
Amino acid
Acid
Nucleotide
Peptide
Nucleic acid

Which of these functional groups does not contain oxygen? a. carboxyl b. phosphate c. sulfhydryl d. hydroxyl e. carbonyl What is the definition of an isomer? a. active and inactive versions of a molecule b. molecules made up of the same elements c. molecules with different structures but similar functions d. molecules with the same molecular formula but different structures e. molecules with the same structure but different molecular formulas

ap_bio_chap_13_dna.ppt

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Biology
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DNA Replication
Molecular biology
Enzymes
Biotechnology
Genetics
DNA ligase
Okazaki fragments
DNA
Polymerase chain reaction
Primer
Molecular cloning
Semiconservative replication

0 13 The Molecular Basis of Inheritance Overview: Life?s Operating Instructions In 1953, James Watson and Francis Crick introduced an elegant double-helical model for the structure of deoxyribonucleic acid, or DNA DNA, the substance of inheritance, is the most celebrated molecule of our time Hereditary information is encoded in DNA and reproduced in all cells of the body (DNA replication) Figure 13.1 Concept 13.1: DNA is the genetic material Early in the 20th century, the identification of the molecules of inheritance loomed as a major challenge to biologists The Search for the Genetic Material: Scientific Inquiry

Intro to Microbiology, Part 2/3 Study Guide

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Biology
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Molecular biology
Plasmid
Restriction enzyme
Transformation
Gene expression
Molecular cloning
Antibody
Virus
DNA
Polymerase chain reaction
Restriction map
Genetics

Intro to Biotechnology Mark Muller March 19, 2015 Chelsea Claverie Midterm Study Guide The Northern Blot detects the presence of certain RNA sequences, while the Southern blot can detect various DNA segments. Northern blot uses a gel electrophoresis, blot, RNA probes, and x-ray to determine the presence of a particular mRNA sequence that was immobilized and run in the electrophoresis. Southern blot uses an autoradiograph in combination with an electrophoresis gel to identify similarities between DNA. Similar DNA should travel the same distance in the electrophoresis, on the blot, and have the same binding sites from probes on the autoradiograph.

Intro to Microbiology, Part 1/3 Study Guide

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Biology
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Molecular biology
Gene expression
DNA Replication
Genetics
RNA
Transcription
DNA
Primer
Messenger RNA
Primase
Protein biosynthesis
Gene

Chelsea Claverie MCB 1310 February 10, 2015 Exam 1 Review: DNA polymerase ? involved in the replication of DNA, requires a ?primer? to initiate a new strand of DNA, faster at synthesis RNA Polymerase ? involved in transcription of DNA to mRNA, does not require a primer to start a new strand of RNA and will stop transcription with it encounters a stop codon

Replication Simulation

Subject: 
Biology
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Biology
DNA Replication
Genetics
DNA
Molecular biology
Helices
Replication fork
Nucleic acid sequence
Okazaki fragments
RNA
Gene
Base pair

AP Biology: DNA Replication Lab You will use simulations to demonstrate the structure and replication of DNA in this laboratory exercise. As you have studied, the genetic information for living organisms is stored in the structure of deoxyribose nucleic acid (DNA). Our DNA molecules carry the genetic code for inherited characteristics in the triplet-coded sequences of its nitrogen bases. Each time a cell divides, its DNA is precisely duplicated (DNA replication) so that the DNA of the cells formed is identical to that of the original cell.

Chromatin folding

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Biology
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Biology
Genetics
Epigenetics
Molecular genetics
DNA
Proteins
Chromatin
Histone
Nucleosome
Chromosome
Non-histone protein
Solenoid

Chromatin: The formation of chromosomes Chromatin is packed into chromosomes during mitosis. We will look at the steps from interphase to metaphase There are several levels of organisation in terms of chromatin folding? Free DNA 2nm Formation of the nucleosome: The DNA strand wraps around a core of eight histones (H2A, H2B, H3, H4: x2) 1.65 times. Also known as ?beads-on-a-string? and is the basic chromatin structure. 10nm An H1 histone tails binds on the outside of the coil on each nucleosome unit, now chromatosome units. Further condensing occurs: 30nm Interactions between: Interactions between chromatosomes (nucleosomes and H1 histones) leads to more folding of the 30nm fibres, creating a thicker fibre. 30nm

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