DNA: The genetic material
... DNA chromosome 2. others consist of one or more chromosomes and are either circular or linear 3. typically arranged in arranged in a dense clump in a region called the nucleoid ...
... DNA chromosome 2. others consist of one or more chromosomes and are either circular or linear 3. typically arranged in arranged in a dense clump in a region called the nucleoid ...
doc BIOL202-16
... o At first we won’t see anything, but after 1 to 2 days, visible colonies of each clone will form. o Bacterial cells divide every 20-30 minutes o Each colony represents a clone of the corresponding single cell. o All the colonies we see are transformed bacteria that incorporated the plasmid. o The w ...
... o At first we won’t see anything, but after 1 to 2 days, visible colonies of each clone will form. o Bacterial cells divide every 20-30 minutes o Each colony represents a clone of the corresponding single cell. o All the colonies we see are transformed bacteria that incorporated the plasmid. o The w ...
16A-DNATheGeneticMaterial
... material was derived from studies that tracked the infection of bacteria by viruses. • Viruses consist of a DNA (sometimes RNA) enclosed by a protective coat of protein. • To replicate, a virus infects a host cell and takes over the cell’s metabolic machinery. ...
... material was derived from studies that tracked the infection of bacteria by viruses. • Viruses consist of a DNA (sometimes RNA) enclosed by a protective coat of protein. • To replicate, a virus infects a host cell and takes over the cell’s metabolic machinery. ...
DNA as genetic material chemistry of genetic neuclic acid
... feature of protein structure. • Maurice Wilkins and Rosalind Franklin, another group tried to find out the structure of DNA at Kings College in London. They used X-ray diffraction to analyse the threedimensional structure of DNA. • Erwin Chargaff was another very important contributor. Chargaff stud ...
... feature of protein structure. • Maurice Wilkins and Rosalind Franklin, another group tried to find out the structure of DNA at Kings College in London. They used X-ray diffraction to analyse the threedimensional structure of DNA. • Erwin Chargaff was another very important contributor. Chargaff stud ...
ppt
... The order of the nucleotides is important, and is maintained by matching of bases across the DNA ladder (A-T, C-G), and by enzymes that patrol the DNA DNA replication occurs before cell division, and is an orderly, enzyme-driven ...
... The order of the nucleotides is important, and is maintained by matching of bases across the DNA ladder (A-T, C-G), and by enzymes that patrol the DNA DNA replication occurs before cell division, and is an orderly, enzyme-driven ...
coding region of DNA. o Introns – non
... Genetic elements that regulate transcription. o Tissue-specific transcription factors. o Repressors present in some regions and absent in others. Elongation (step 2 of transcription). o RNA polymerase breaks interactions with transcription factors and escapes the promoter region to start elongation. ...
... Genetic elements that regulate transcription. o Tissue-specific transcription factors. o Repressors present in some regions and absent in others. Elongation (step 2 of transcription). o RNA polymerase breaks interactions with transcription factors and escapes the promoter region to start elongation. ...
No Slide Title
... Bacteria: methylation distinguishes self from foreign DNA (methylation after synthesis) base-base mismatch repair (nonmethylated strand scanned) Higher Eukaryotes: 5-methylcytosine is only methylated form found predominately at CpG role in gene expression (undermethylated increase in transcription ...
... Bacteria: methylation distinguishes self from foreign DNA (methylation after synthesis) base-base mismatch repair (nonmethylated strand scanned) Higher Eukaryotes: 5-methylcytosine is only methylated form found predominately at CpG role in gene expression (undermethylated increase in transcription ...
New Measurements of DNA Twist Elasticity
... The idea of studying the response of DNA to mechanical stress is as old as the discovery of the double helix structure itself. While many elements of DNA function require detailed understanding of specific chemical bonds (for example the binding of small ligands), still others are quite nonspecific ...
... The idea of studying the response of DNA to mechanical stress is as old as the discovery of the double helix structure itself. While many elements of DNA function require detailed understanding of specific chemical bonds (for example the binding of small ligands), still others are quite nonspecific ...
Slide 1
... •Proteins are made by stringing together long chains of amino acids. •There are 20 amino acids •DNA contains only 4 different nitrogenous bases •The genetic code must have a four-letter “alphabet” •The smallest size for a code word in DNA is three nucleotides (to ...
... •Proteins are made by stringing together long chains of amino acids. •There are 20 amino acids •DNA contains only 4 different nitrogenous bases •The genetic code must have a four-letter “alphabet” •The smallest size for a code word in DNA is three nucleotides (to ...
Biology 155 Practice Exam 3 Name 1. Crossing
... population is due to genetic differences 25. Which statement about DNA replication is NOT correct? a. it requires nucleotide triphosphates b. in prokaryotic cells there is a single origin of replication c. DNA polymerase adds new nucleotides on the 5’ end of the molecule it synthesizes d. DNA synthe ...
... population is due to genetic differences 25. Which statement about DNA replication is NOT correct? a. it requires nucleotide triphosphates b. in prokaryotic cells there is a single origin of replication c. DNA polymerase adds new nucleotides on the 5’ end of the molecule it synthesizes d. DNA synthe ...
GENETICS – BIO 300
... accept DNA (rather than protein) as hereditary material?... DNA is a simple molecule... how is complexity of life encoded by such simplicity? ...
... accept DNA (rather than protein) as hereditary material?... DNA is a simple molecule... how is complexity of life encoded by such simplicity? ...
Lecture 21-23
... b. exon = coding region of DNA / RNA (exons are expressed) Alternative splicing (removing different combinations of introns and exons from a given gene) allows for efficiency and diversity. Consider: each gene contains about 20 times the number of base pairs necessary for a functional protein produc ...
... b. exon = coding region of DNA / RNA (exons are expressed) Alternative splicing (removing different combinations of introns and exons from a given gene) allows for efficiency and diversity. Consider: each gene contains about 20 times the number of base pairs necessary for a functional protein produc ...
Lesson Plan Construction Form
... 4. Fasten your molecule together using clear tape. Do not tape across base pairs. 5. As in step 1, copy the parts for A, G, and C RNA nucleotides. Use the same colors of construction paper as in step 1. Use the fifth color of construction paper to make copies of uracil nucleotides. 6. With scissors, ...
... 4. Fasten your molecule together using clear tape. Do not tape across base pairs. 5. As in step 1, copy the parts for A, G, and C RNA nucleotides. Use the same colors of construction paper as in step 1. Use the fifth color of construction paper to make copies of uracil nucleotides. 6. With scissors, ...
Examination 3
... Adds non-coding sequence of DNA to the template strand (in some tissues) The usual enzymes can not extend the new DNA strand The telomere prevents erosion of chromosome ends during rounds of replication Uses RNA, made of protein, to add to the chromosome Why is telomerase an important enzyme? What d ...
... Adds non-coding sequence of DNA to the template strand (in some tissues) The usual enzymes can not extend the new DNA strand The telomere prevents erosion of chromosome ends during rounds of replication Uses RNA, made of protein, to add to the chromosome Why is telomerase an important enzyme? What d ...
Document
... of the second fragment, replacing it with DNA nucleotides that it adds one by one to the 3’ end of the third fragment. The replacement of the last RNA nucleotide with DNA leaves the sugarphosphate backbone with a free 3 end. ...
... of the second fragment, replacing it with DNA nucleotides that it adds one by one to the 3’ end of the third fragment. The replacement of the last RNA nucleotide with DNA leaves the sugarphosphate backbone with a free 3 end. ...
Pathogenic Mechanisms of Cancer
... Substrate Formation A circular piece of DNA, known as a plasmid, serves as the starting material for the mismatch repair substrate. ...
... Substrate Formation A circular piece of DNA, known as a plasmid, serves as the starting material for the mismatch repair substrate. ...
Genetics 314 - Spring 2005
... kit. The disclaimer in the kit says this should not cause problem with translation. a) How could the company claim that its cost saving measures would not affect your ability to translate your gene? There is a redundancy in the code where more that one codon codes for a specific amino acid. Combine ...
... kit. The disclaimer in the kit says this should not cause problem with translation. a) How could the company claim that its cost saving measures would not affect your ability to translate your gene? There is a redundancy in the code where more that one codon codes for a specific amino acid. Combine ...
Protein Synthesis
... DNA replication makes an exact copy of the entire DNA molecule, whereas transcription re-writes a gene by producing an mRNA molecule from only part of the DNA molecule. 4. Why is it necessary for DNA to transfer its genetic information to RNA? Many genes are being transcribed simultaneously. DNA can ...
... DNA replication makes an exact copy of the entire DNA molecule, whereas transcription re-writes a gene by producing an mRNA molecule from only part of the DNA molecule. 4. Why is it necessary for DNA to transfer its genetic information to RNA? Many genes are being transcribed simultaneously. DNA can ...
DNA Replication
... • Enzymes proofread and correct these mistakes • The new error rate for DNA that has been proofread is 1 in 1 billion base pairing errors copyright cmassengale ...
... • Enzymes proofread and correct these mistakes • The new error rate for DNA that has been proofread is 1 in 1 billion base pairing errors copyright cmassengale ...
DNA polymerase
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from a single original DNA molecule. During this process, DNA polymerase “reads” the existing DNA strands to create two new strands that match the existing ones.Every time a cell divides, DNA polymerase is required to help duplicate the cell’s DNA, so that a copy of the original DNA molecule can be passed to each of the daughter cells. In this way, genetic information is transmitted from generation to generation.Before replication can take place, an enzyme called helicase unwinds the DNA molecule from its tightly woven form. This opens up or “unzips” the double-stranded DNA to give two single strands of DNA that can be used as templates for replication.