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2008 Academic Challenge BIOLOGY TEST
2008 Academic Challenge BIOLOGY TEST

... d. An individual with Phenylketonuria cannot metabolize phenylalanine, and if a special diet is not begun develops mental retardation. e. Hemophilia A is characterized by the propensity for bleeding caused by the lack of a blood clotting factor. 33. Which of the following is/are not an example of de ...
How do you go from gene to protein?
How do you go from gene to protein?

... which codes for a specific amino acid sequence, otherwise called a protein. These proteins result in the presence or absence of particular traits, or phenotypes. The process of going from gene, or DNA, to protein involves a series of steps including transcription of DNA to mRNA and translation of mR ...
COMPARISON OF THREE DNA ISOLATION AND
COMPARISON OF THREE DNA ISOLATION AND

... DNA was isolated by GES Method (Pitcher et al.1989). One strain of the R. pyridinovorans TPIK grown in medium nutrient agar at 370C overnight. The bacteria were suspended in1 ml TE buffer (10mM Tris-HCl, 1 mM EDTA, pH 8).The mixture then centrifugated 1000 rpm for 15 min at 4°C . The pellet was adde ...
How does DNA determine the traits of organisms?
How does DNA determine the traits of organisms?

... amino acids. Your job is to determine the sequence of amino acids for your specimen. Write the complimentary mRNA, tRNA, and the amino acid (A.A.) sequence it codes for and the related trait in the chart on the next page. ...
Molecular-aided identification of woody plants in a tropical forest of
Molecular-aided identification of woody plants in a tropical forest of

... genealogies have different statistical properties and that they may be modeled differently ...
PCR - share1
PCR - share1

... “… Blumwald and Zhang genetically engineered tomato plants that produce higher levels of …protein known as a "transport protein." The gene that controls increased production of the transport protein was taken from Arabidopsis, a relative of the cabbage …. The transport protein uses energy available ...
The Genetics of Microorganisms
The Genetics of Microorganisms

... • The small subunit binds to the 5’ end of the mRNA • Large subunit supplies enzymes for making peptide bonds on the protein • The ribosome scans the mRNA by moving in the 5’ to 3’ direction along the mRNA • The first codon is the START codon (AUG but can rarely be GUG) • With the mRNA message in p ...
Advance Molecular Biology (LS6421, 1999)
Advance Molecular Biology (LS6421, 1999)

... (g). The C-terminus of SIR3 has a similarity to nuclear lamin proteins. 13. Global changes in X chromosomes. (1). Constitutive heterochromatin and facultative heterochromatin. (2). X-linked variegation is caused by the random inactivation of one chromosome in each precursor cell (n-1 rule). (3). X-i ...
Subject:
Subject:

... Bio.3.1.3 Explain how mutations in DNA that result from interactions with the environment (i.e. radiation and chemicals) or new combinations in existing genes lead to changes in function and phenotype. Bio.3.2.1 Explain the role of meiosis in sexual reproduction and genetic variation. Bio.3.2 Unders ...
BIOLOGY EOC PRACTICE TEST _1[1]
BIOLOGY EOC PRACTICE TEST _1[1]

... C fish live in the water and flatworms do not D fish cells do not go through mitosis 11. Scientists have completed the main phase of the Human Genome Project. What have they accomplished with this project? A They created a single pedigree for every genetic disorder B They used a single cell from one ...
Genetics, Exam 2, Sample A  Name ___________________________
Genetics, Exam 2, Sample A Name ___________________________

... 10. In whales, the gene controlling tail shape exists as a dominant notched (T) or a recessive smooth (t) allelic form. A separate gene controls whether there are white markings on the dorsal fin or not. The dominant allele of the second gene (W) results in no white markings whereas the other allel ...
O`Kane
O`Kane

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Gene Cloning
Gene Cloning

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Mutation
Mutation

... Bromine and some compounds that contain bromine in their chemical structure. Sodium azide, an azide salt that is a common reagent in organic synthesis and a component in many car airbag systems Psoralen combined with ultraviolet radiation causes DNA crosslinking and hence chromosome breakage. Benzen ...
Science 9: Unit A – Biological Diversity
Science 9: Unit A – Biological Diversity

... The Four Nitrogen Bases • The chemical rungs are four nitrogen bases: Adenine (A), Thiamine (T), Guanine (G), and Cytosine (C). • The rungs of DNA are made up of alternating pairs of these bases. • Adenine can only pair up with thiamine, and cytosine with guanine. • The pattern of these repeating p ...
Slajd 1
Slajd 1

... 2. Melting Temperature (Tm) for each primer = 50 – 65ºC. 3. Difference between Tm of primers max. 5ºC. 4. Primers should not contain 4 consecutive G/C residues. The last nucleotide at the 3’-end of the primer should be C/G. 5. Optimize concentration of forward and reverse primers to be used 6. Prime ...
DNA Replication
DNA Replication

...  Now, if a cell has 46 chromosomes in it  And we have done DNA replication,  Then that cell will have double the number of chromosomes…it will have 92  Is this normal? How do we get it back to 46? ...
Griffith/Hershey/Chase
Griffith/Hershey/Chase

... Some viruses do not contain DNA, being made up instead of protein and RNA (ribonucleic acid). The tobacco mosaic virus (TMV) is such an RNA virus. H. Fraenkel-Conrat and others were able to dissociate the TMV into its constituent protein and RNA parts (figure 6.3). When the parts were mixed, they re ...
495-Ze15
495-Ze15

... sugar subunits. Dotted lines are used for hydrogen bonds. The model suggests the mechanism of DNA replication, namely, strand separation and synthesis of new chains using parent chains as templates. The information containing in DNA molecule is transcribed into base sequence of RNA single chain macr ...
notes
notes

... Direction of movement of strands ...
Modern Genetics Notes
Modern Genetics Notes

... nitrogen (15N) and then moved them to a medium containing light nitrogen (“N), allowing the bacteria to replicate and divide once. The new bacterial DNA contained DNA consisting of one heavy strand and one light strand, thus proving Watson and Crick’s theory.heir now-famous model of DNA. ...
Recombinant DNA and Genetic Engineering
Recombinant DNA and Genetic Engineering

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Section 7.2: Transcription: DNA
Section 7.2: Transcription: DNA

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Gene Polypeptide - Grayslake Central High School
Gene Polypeptide - Grayslake Central High School

... ...
Mortlock_lab_Nucleobond_maxiprep
Mortlock_lab_Nucleobond_maxiprep

... liquid around the bottom of the tube to allow it a chance to start hydrating dispersed pieces of the DNA pellet. Place the centrifugation tube on a platform shaker or 3D-shaker with slow, gentle agitation for 10-60 min. at 4˚ or room temperature. Remove the BAC DNA with a wide-bore pipette tip. Tran ...
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Nucleic acid double helix



In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical structure of a nucleic acid complex arises as a consequence of its secondary structure, and is a fundamental component in determining its tertiary structure. The term entered popular culture with the publication in 1968 of The Double Helix: A Personal Account of the Discovery of the Structure of DNA, by James Watson.The DNA double helix polymer of nucleic acids, held together by nucleotides which base pair together. In B-DNA, the most common double helical structure, the double helix is right-handed with about 10–10.5 base pairs per turn. This translates into about 20-21 nucleotides per turn. The double helix structure of DNA contains a major groove and minor groove. In B-DNA the major groove is wider than the minor groove. Given the difference in widths of the major groove and minor groove, many proteins which bind to B-DNA do so through the wider major groove.
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