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Spring Semester Test Review KEY
Spring Semester Test Review KEY

... 36. [Transcription/Translation] _____is the first process in protein synthesis in which mRNA is made from the instructions of a DNA template. 37. [Transcription/Translation] _____ is the second process in protein synthesis in which tRNA brings the amino acid to the mRNA at the ribosome to form the p ...
handout 1
handout 1

... The traditional approach to identifying bacterial strains is based largely on growthdependent physiological and biochemical tests that have been developed since the beginning of the 20th Century, and are still widely used in clinical laboratories. We perform a number of these classic diagnostic test ...
Heredity Study Guide
Heredity Study Guide

... grows identical to the parent. 34. _____________________: organism, such as a sea star, loses a body part and that part may develop into a new organism. 35. You can use a _____ ___________ to organize possible offspring combinations. 36. ________________ is an organism’s appearance. 37. ____________ ...
Manipulating DNA - Biology R: 4(A,C)
Manipulating DNA - Biology R: 4(A,C)

...  2. Look carefully at the series, and find this sequence of letters: GTTAAC. It may appear more than once. How many occurrences of the sequence GTTAAC can you find? ...
Chapter 25: Molecular Basis of Inheritance
Chapter 25: Molecular Basis of Inheritance

... a tumor, an abnormal mass of cells. Carcinogenesis, the development of cancer, is a gradual process. Cancer cells lack differentiation, form tumors, undergo angiogenesis and ...
DNA functions worksheet
DNA functions worksheet

... 2. What is the main difference between the structure of chromatin and the structure of chromosomes? ...
Genetics Genetics, a discipline of biology, is the science of genes
Genetics Genetics, a discipline of biology, is the science of genes

Diapositive 1 - Master 1 Biologie Sant&#233
Diapositive 1 - Master 1 Biologie Santé

... * Protein Coding sequences represent less than 2% of human genome * More than 50% of human genome sequences are repetitive sequences ...
Remember when we . . Students should be able to
Remember when we . . Students should be able to

... 16. Explain the difference between organism cooperation and competition. Cooperation can exist between animals of the same species to do specialized jobs or help hunt or care for the young. If cooperation happens between DIFFERENT species it is SYMBIOSIS. Competition may be between animals of the sa ...
Frontiers of Biotechnology
Frontiers of Biotechnology

... • Scientists use their knowledge of the _____________________ and its chemical properties to ...
Concepts of Genetics Necessities of Life Reproduction: DNA DNA
Concepts of Genetics Necessities of Life Reproduction: DNA DNA

... polypeptide is determined by the sequence of nitrogenous bases in the DNA unit (or gene) coding for that polypeptide. •Protein synthesis is a two-step process: –Transcription: copying the DNA to RNA –Translation: using the RNA to assemble the polypeptide ...
Evidence of relationships between organisms
Evidence of relationships between organisms

... direct examination of their DNA or of the proteins encoded by this DNA. • Comparison of DNA base sequences is used to elucidate relationships between organisms. These comparisons have led to new classification systems in plants. • Similarities in DNA may be determined by DNA hybridisation. • Compari ...
evolution model - EmperorPenguinsGoneWild
evolution model - EmperorPenguinsGoneWild

... the chance of survival i.e. Penguins with high bone density can undergo more barometric pressure when diving underwater, allowing them to collect more food and escape predators ...
LESSON 4 Genetics: STUDY GUIDE
LESSON 4 Genetics: STUDY GUIDE

... • Describe the events of DNA replication. (pg. 350) • Differentiate DNA replication in prokaryotes with that of eukaryotes. (pg. 352) ...
chapter 4.4 review
chapter 4.4 review

... When a plant reproduces vegetatively, are the offspring genetically different from or genetically identical to the parent? ...
DNA, RNA and Protein Synthesis
DNA, RNA and Protein Synthesis

... 11.2 From DNA to PROTEIN • I. The Purpose of DNA: DNA is used to make RNA which is used to make proteins!! • DNA--> RNA--> Proteins – A. One DNA molecule has many GENES on it! – B. Gene—segment of DNA molecule that codes for a specific protein. ...
The amount of DNA, # of genes and DNA per gene in various
The amount of DNA, # of genes and DNA per gene in various

... The first proof was provided In 1961 by measuring the ratio of different dinucleotides in DNA. The concentration of 5’AG3’ was equal to 5’CT3’ (as expected from an antiparallel orientation) and not equal to 5’TC3’ (as expected from a a parallel orientation). DNA sequencing in 1970s confirmed this co ...
Chapter 04
Chapter 04

... DNA The Double Helix • Resembles ladder twisted into a spiral • Thin: easily packed into small places • Double strand: protects inward-facing nucleotide sequence; essential for copying ...
Foundations in Microbiology
Foundations in Microbiology

... subjected to an electric current – Negative charge of molecule causes DNA to move toward positive pole – Rate of movement is dependent on size of fragment – larger fragments move more slowly – Fragments are stained for observation – Useful in characterizing DNA fragments and comparing for genetic si ...
Protein Synthesis Analogy
Protein Synthesis Analogy

... This activity shows how making proteins out of amino acids is like building a sentence out of words. 1. Students will work in groups of 2-3 students each. 2. The classroom is a cell. 3. The teacher’s desk will be the nucleus. The nucleus will have DNA strands. 4. Students will be mRNA molecules. The ...
Genetics, Exam 2, Sample A  Name ___________________________
Genetics, Exam 2, Sample A Name ___________________________

... 4. A human female with a family history of genetic disorders decides to subject herself to karyotypic analysis and other forms of genetic screening before starting a family. Although none of the known disease genes are found, a rearrangement of genes on one member of a pair of homologous chromosomes ...
No Slide Title
No Slide Title

... End labeling of DNA sequence Chemical modification and removal of specific bases Piperidine to cleave phosphodiester bond Reactions controlled to get 1 break per molecule Subsets of labeled DNA with different lengths ...
Foundations in Microbiology
Foundations in Microbiology

... subjected to an electric current – Negative charge of molecule causes DNA to move toward positive pole – Rate of movement is dependent on size of fragment – larger fragments move more slowly – Fragments are stained for observation – Useful in characterizing DNA fragments and comparing for genetic si ...
DNA and PROTEIN SYNTHESIS
DNA and PROTEIN SYNTHESIS

pGLO transformation lab notes-2007
pGLO transformation lab notes-2007

... 4. Nutrient broth incubation Allows beta-lactamase expression ...
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DNA supercoil



DNA supercoiling refers to the over- or under-winding of a DNA strand, and is an expression of the strain on that strand. Supercoiling is important in a number of biological processes, such as compacting DNA. Additionally, certain enzymes such as topoisomerases are able to change DNA topology to facilitate functions such as DNA replication or transcription. Mathematical expressions are used to describe supercoiling by comparing different coiled states to relaxed B-form DNA.As a general rule, the DNA of most organisms is negatively supercoiled.
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