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Genes and causation
Genes and causation

... The molecular biological definition of a gene is very different. Following the discovery that DNA codes for proteins, the definition shifted to locatable regions of DNA sequences with identifiable beginnings and endings. Complexity was added through the discovery of regulatory elements, but the basic c ...
BNS216 - Staff
BNS216 - Staff

... • Test three: Expression vectors and nucleic acid detection • Test four: Manipulating eukaryotic organisms ...
1 - KSU Faculty Member websites
1 - KSU Faculty Member websites

... Meiosis differs from mitosis in that A. it occurs only in the reproductive tissues that produce gametes. B. the chromosomes are duplicated twice. C. the resulting cells are polyploid. D. the chromosome pairs do not separate. Answer:A ...
SCIENTIFIC BACKGROUND OF GENETICS A
SCIENTIFIC BACKGROUND OF GENETICS A

... together. The "beginning" of a strand of a DNA molecule is defined as 5'. The "end" of the strand of A DNA molecule is defined as 3'. The 5' and 3' terms refer to the position of the nucleotide base, relative to the sugar molecule in the DNA backbone. The two strands in a double helix are oriented i ...
Glowing Pets
Glowing Pets

... human insulin can be inserted into bacteria with the help of a plasmid. The bacteria will then secrete human insulin that can be harvested economically and with great purity. The millions of diabetics throughout the world can then use the insulin. You have been provided with a paper plasmid and a pi ...
Southern Blot Analysis of Plasmids pRIT4501 and - RIT
Southern Blot Analysis of Plasmids pRIT4501 and - RIT

... Experiment 18 ...
EPICENTRE Revolutionizes Cloning by Introducing CopyControl
EPICENTRE Revolutionizes Cloning by Introducing CopyControl

... cDNA, or PCR products at a single copy and then, whenever desired, to induce the clones to high copy number (10-50+ copies per cell) (Figure 1). Thus, the CopyControl Systems combine the clone stability afforded by single copy cloning with the advantages of high yields of DNA obtained by high copy v ...
GeneToProtein
GeneToProtein

... From gene to protein nucleus ...
Genetics Project
Genetics Project

... Genetic Engineering (Biotechnology, Gel Electrophoresis, Recombinant DNA) 1. What is genetic engineering? 2. What is gel electrophoresis? a. What is used to cut the DNA cut? b. How do the pieces of DNA move through the gel? Do the shorter or longer pieces of DNA go further? Why? c. How is a gel read ...
Study Guide for Exam 3
Study Guide for Exam 3

... 10. Explain how mutations affect protein synthesis. 11. Recognize examples of silent mutations. 12. Recognize examples of insertions, deletions, and frameshift mutations. 13. Explain the importance of controlling gene expression. 14. Explain when DNA replication occurs in the cell cycle. 15. Give th ...
Vectors - Rajshahi University
Vectors - Rajshahi University

... This plasmid has recently become very important in plant breeding because specific genes can be inserted into Ti plasmid by recombinant DNA techniques, and sometimes these genes can become integrated into plant chromosome, thereby permanently changing the genotype and phenotype of the plant. New pla ...
Life Sciences Exemplar Paper 1
Life Sciences Exemplar Paper 1

... 3.2.2 Calculate the number of people with Down's syndrome. Show ALL workings. ...
Restriction fragment length polymorphism in the exon 2 of the BoLA
Restriction fragment length polymorphism in the exon 2 of the BoLA

... enzymes (Hae III, Bst YI and Rsa I) were chosen based on their cut site and ability to cut DNA in this exon. The second stage PCR products were digested with the restriction enzymes according to the manufacture’s instructions. A 15μL of the second stage PCR product containing 8μL, 0.5U of restrictio ...
Segmented Arrangement of Borrelia duttonii DNA
Segmented Arrangement of Borrelia duttonii DNA

... a 1% agarose gel (Pharmacia agarose). A section of gel containing fragments in the size range 24-56 kb was excised and fragments were electro-eluted from the gel slice (Maniatis et al., 1982) and recovered by ethanol precipitation. Fragments were ligated to PstI cleaved and dephosphorylated pBR322 ( ...
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Slide 1

...  Incomplete dominance: two copies of the dominant allele are required to see the full phenotype; heterozygote phenotype is intermediate to the homozygotes (e.g., flower color in snapdragons) Flower color in snapdragons ...
CHAPTER 8
CHAPTER 8

Chapter_10_HB_Molecular_Biology
Chapter_10_HB_Molecular_Biology

... Hydrogen atom Carbon atom Nitrogen atom Oxygen atom ...
SF Genetics Lecture_Central Dogma_3.1 BY2208
SF Genetics Lecture_Central Dogma_3.1 BY2208

... •! The absolute sequence of the spacer region (between the -10 and -35 boxes) is not important •! The length of the spacer sequence IS important: TTGACA - spacer (16 to 19 base pairs) - TATAAT ...
A2.1.4.GeneticTesting
A2.1.4.GeneticTesting

HYS2, an essential gene required for DNA replication in
HYS2, an essential gene required for DNA replication in

... Isolation of hys mutants The culture of wild type cells in the presence of HU (10 mg/ml) temporarily accumulates cells with large buds and eventually recovers from the HU arrest. We mutagenized wild type cells (strain KSH106) with ethyl methanesulfonate (EMS) and screened for colonies that were sens ...
comparing dna sequences to determine evolutionary relationships
comparing dna sequences to determine evolutionary relationships

... another until the best matching pattern is found. Alignment allows you to examine differences between related sequences; such differences reflect evolutionary relationships.     From the menu, choose Alignment -> Do Complete Alignment. When prompted for output file names, use the default names g ...
Prehistoric Press Release
Prehistoric Press Release

... DNA (deoxyribonucleic acid) is the genetic material of the cell. It determines how living organisms grow and function. DNA is a long stringy molecule, shaped like a spiral staircase and called the double helix. This structure was discovered 100 years ago in ...
PDF
PDF

... Mutation(1) will cause a bigger defect-no repair will occur because both strands are methylated. MutH will only nick unmethylated DNA. With a null mutant, neither strand will be methylated so the mismatch repair machinery will randomly choose one strand to repair off of which will result in repair o ...
Gene transfer from organelles to the nucleus: Frequent and in big
Gene transfer from organelles to the nucleus: Frequent and in big

... these transfer rates are understimates (6, 11) because in both cases only (i) highly expressing transfers and (ii) the resistance-conferring segement of the chloroplast DNA were scored. A constant trickle of organelle DNA into the nucleus might also be an underappreciated source of biological novelt ...
Question 1 _____/ 30 points Question 2 _____/ 20 points Question 3
Question 1 _____/ 30 points Question 2 _____/ 20 points Question 3

... Name ______________________________ ...
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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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