Nucleic Acid Structure Nucleic Acid Sequence Abbreviations
... • DNA carries genetic information • 1 copy (haploid) or 2 copies (diploid) per cell • See “History of Search for Genetic Material” ...
... • DNA carries genetic information • 1 copy (haploid) or 2 copies (diploid) per cell • See “History of Search for Genetic Material” ...
Transcription and Translation
... 10. The orientation of the RNA is determined by the promoter, that is, by which strand contain the sequence that is recognized by RNA polymerase. This can be oriented in either direction. NOTE: DNA is always read 3' to 5' so that the new RNA is made in the 5' to 3' direction. ...
... 10. The orientation of the RNA is determined by the promoter, that is, by which strand contain the sequence that is recognized by RNA polymerase. This can be oriented in either direction. NOTE: DNA is always read 3' to 5' so that the new RNA is made in the 5' to 3' direction. ...
DNA - The Double Helix
... Nucleic acids Reading Activity DNA - The Double Helix Recall that the nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike stra ...
... Nucleic acids Reading Activity DNA - The Double Helix Recall that the nucleus is a small spherical, dense body in a cell. It is often called the "control center" because it controls all the activities of the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike stra ...
DNA - The Double Helix
... the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). In simple terms, DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and ...
... the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). In simple terms, DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and ...
DNA - The Double Helix
... the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). In simple terms, DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and ...
... the cell including cell reproduction, and heredity. Chromosomes are microscopic, threadlike strands composed of the chemical DNA (short for deoxyribonucleic acid). In simple terms, DNA controls the production of proteins within the cell. These proteins in turn, form the structural units of cells and ...
Restriction Enzymes
... searches the DNA molecule until it finds this sequence of four nitrogen bases. ...
... searches the DNA molecule until it finds this sequence of four nitrogen bases. ...
What is Biotechnology?
... • Once the location of the DNA sequence has been located, scientists can use restrictiion enzymes to separate the DNA at a particular location on the gene • Once the pieces of DNA are removed other DNA canbe spliced in or recombined with the remaining DNA – This results in recombinant DNA ...
... • Once the location of the DNA sequence has been located, scientists can use restrictiion enzymes to separate the DNA at a particular location on the gene • Once the pieces of DNA are removed other DNA canbe spliced in or recombined with the remaining DNA – This results in recombinant DNA ...
DNA
... molecules of DNA and RNA. [When an electric current is applied to the gel, negatively charged molecules move toward the positive end, and positively charged molecules move toward the negative end.] The charge, size, and shape of a particular molecule all affect the rate at which a molecule moves thr ...
... molecules of DNA and RNA. [When an electric current is applied to the gel, negatively charged molecules move toward the positive end, and positively charged molecules move toward the negative end.] The charge, size, and shape of a particular molecule all affect the rate at which a molecule moves thr ...
Basics of Molecular Cloning
... and inserting it into a vector where it can be replicated by a host organism. (Sometimes called subcloning, because only part of the organism’s DNA is being cloned.) Using nuclear DNA from one organism to create a second organism with the same nuclear DNA ...
... and inserting it into a vector where it can be replicated by a host organism. (Sometimes called subcloning, because only part of the organism’s DNA is being cloned.) Using nuclear DNA from one organism to create a second organism with the same nuclear DNA ...
2. You perform a Southern blot in which your probe should hybridize
... #2. You perform a Southern blot in which your probe should hybridize to a single DNA band. Blot I : Name THREE possible problems that could cause this (blank blot, no bands). 1. Failure of DNA to transfer to membrane 2. Forgot to bake membrane & DNA washed off 3. Didn’t digest enough DNA to detect 4 ...
... #2. You perform a Southern blot in which your probe should hybridize to a single DNA band. Blot I : Name THREE possible problems that could cause this (blank blot, no bands). 1. Failure of DNA to transfer to membrane 2. Forgot to bake membrane & DNA washed off 3. Didn’t digest enough DNA to detect 4 ...
Maurice Wilkins
Maurice Hugh Frederick Wilkins CBE FRS (15 December 1916 – 5 October 2004) was a New Zealand-born English physicist and molecular biologist, and Nobel Laureate whose research contributed to the scientific understanding of phosphorescence, isotope separation, optical microscopy and X-ray diffraction, and to the development of radar. He is best known for his work at King's College, London on the structure of DNA which falls into three distinct phases. The first was in 1948–50 where his initial studies produced the first clear X-ray images of DNA which he presented at a conference in Naples in 1951 attended by James Watson. During the second phase of work (1951–52) he produced clear ""B form"" ""X"" shaped images from squid sperm which he sent to James Watson and Francis Crick causing Watson to write ""Wilkins... has obtained extremely excellent X-ray diffraction photographs""[of DNA]. Throughout this period Wilkins was consistent in his belief that DNA was helical even when Rosalind Franklin expressed strong views to the contrary.In 1953 Franklin instructed Raymond Gosling to give Wilkins, without condition, a high quality image of ""B"" form DNA which she had unexpectedly produced months earlier but had “put it aside” to concentrate on other work. Wilkins, having checked that he was free to personally use the photograph to confirm his earlier results, showed it to Watson without the consent of Rosalind Franklin. This image, along with the knowledge that Linus Pauling had published an incorrect structure of DNA, “mobilised” Watson to restart model building efforts with Crick. Important contributions and data from Wilkins, Franklin (obtained via Max Perutz) and colleagues in Cambridge enabled Watson and Crick to propose a double-helix model for DNA. The third and longest phase of Wilkins' work on DNA took place from 1953 onwards. Here Wilkins led a major project at King's College, London, to test, verify and make significant corrections to the DNA model proposed by Watson and Crick and to study the structure of RNA. Wilkins, Crick and Watson were awarded the 1962 Nobel Prize for Physiology or Medicine, ""for their discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material.""