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Topic 4 Year 10 Biology
Topic 4 Year 10 Biology

... Cancer is one of the most common diseases of developed countries. ...
Nucleic Acids-Structure, Central Dogma
Nucleic Acids-Structure, Central Dogma

Sex Chromosomes
Sex Chromosomes

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MEIOSIS

... – Ex.: Blue or Brown eyes, Tall or short, Artistic, Athletic ...
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ppt

... - the more you know about the location of your gene of interest, the better; the LESS DNA you will have to manipulate. - Best case – know the location of the gene and can pinpoint it - know the chromosome it is on - Worst case – have to screen the entire genome. 1. - cut it with a restriction enzyme ...
8.2 Structure of DNA
8.2 Structure of DNA

... • An operator is a part of DNA that turns a gene “on” or ”off.” • An operon includes a promoter, an operator, and one or more structural genes that code for all the proteins needed to do a job. – Operons are most common in prokaryotes. – The lac operon was one of the first examples of gene regulatio ...
What is DNA?
What is DNA?

... the stop codons do not code for amino acids but instead act as signals to stop translation. a protein called release factor binds directly to the stop codon in the A site. The release factor causes a water molecule to be added to the end of the polypeptide chain, and the chain then separates from th ...
Molecular testing in non-syndromic hearing loss
Molecular testing in non-syndromic hearing loss

Mitosis
Mitosis

... • At the end of S phase, a cell has twice as many chromatids as there were chromosomes in G1 phase – i.e. - human cell • 46 chromosomes in G1 phase • 46 pairs of sister chromatids in G2 phase ...
Mitosis - Wsimg.com
Mitosis - Wsimg.com

... • At the end of S phase, a cell has twice as many chromatids as there were chromosomes in G1 phase – i.e. - human cell • 46 chromosomes in G1 phase • 46 pairs of sister chromatids in G2 phase ...
Protein Synthesis  1. The connection between genes and proteins.
Protein Synthesis 1. The connection between genes and proteins.

... Some amino acids are coded for by two or more codons but a given codon ALWAYS codes for only one amino acid. i.e. there is redundancy but no ambiguity. e.g., GAA and GAG both mean glutamic acid, but never mean any other amino acid. ...
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October 2012 - Prevention Genetics

... health care providers with crucial medical alerts. In this second article, I address sharing of sequence information electronically among family members. If a person breaks their leg in an automobile accident and is rushed to the emergency room, that person is the "unit of treatment". The emergency ...
The Hereditary Material - Advanced
The Hereditary Material - Advanced

... Over the next decade, scientists, led by Oswald Avery, tried to identify the material involved in transformation. Avery, together with his colleagues Maclyn McCarty and Colin MacLeod, removed various organic compounds from S strain bacteria and tested the remaining compounds for the ability to cause ...
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Lesson 15d Meiosis PPT - Educational Excellence

... • Somatic cells = any cell other than gametes, most of the cells in the body. • Gametes are produced Generalized animal life cycle by meiosis. ...
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幻灯片 1 - TUST

... between the nucleotide sequences of the two genes. Probes also can be generated by the polymerase chain reaction. After construction, the probe is labeled to aid detection. Often 32P is added to both DNA strands so that the radioactive strands can be located with autoradiography. Nonradioactively la ...
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DNA Fingerprinting

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Ch 6 Notes 1011
Ch 6 Notes 1011

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Biology II (Block III)
Biology II (Block III)

... 1) Genetic material can be altered by natural means (mistakes made by the DNA/RNA polymerase) or by artificial means (caused by human activity). The resulting mutations may or may not affect the organism. Many mutations are produced by errors in genetic processes. - Point mutations: Replication/Tran ...
Managing Genetic Conditions
Managing Genetic Conditions

... Between 60 and 100 new From the days of Mendel, mutations occur in every animal, and half of we know that these alleles can have a these (along with any historic mutations they dominant form and a recessive form. If the inherited from their ancestors) will be passed dominant form is present, it will ...
Unit 2 Review Sheet File
Unit 2 Review Sheet File

... 4. Two parents, both with blood type B, have a child who has blood type O. Explain, by using a Punnett square, how this is possible. 5. Explain why having blood type AB is a case of co-dominance rather than incomplete dominance. 6. The cross between pure red four o’clock flowers and pure white ones ...
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Directed Reading B

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CH # 13-3
CH # 13-3

... Some of the most harmful mutations are those that dramatically change protein structure or gene activity. The defective proteins produced by these mutations can disrupt normal biological activities, and result in genetic disorders. ...
homologous structures
homologous structures

... Which one of the following was not a main idea that Darwin advanced in his works? A) species change over time B) living species have arisen from earlier life forms C) modern species arose through a process known as "descent with modification" D) new species can form by inheritance of characteristic ...
Geometrical ordering of DNA in bacteria
Geometrical ordering of DNA in bacteria

... of our model is shown in Figure 1A. As can be seen the model reproduces the experimental results quite well (possible causes of the small differences close to the ori pole are discussed in ref. 12). Similar results were found for newborn E. coli cells. However, here the DNA configurations depend on ...
Mutations
Mutations

... Some of the most harmful mutations are those that dramatically change protein structure or gene activity. The defective proteins produced by these mutations can disrupt normal biological activities, and result in genetic disorders. ...
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Mutagen



In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level. As many mutations can cause cancer, mutagens are therefore also likely to be carcinogens. Not all mutations are caused by mutagens: so-called ""spontaneous mutations"" occur due to spontaneous hydrolysis, errors in DNA replication, repair and recombination.
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