Student book links
... Describe, with the aid of diagrams, the way in which a nucleotide sequence codes for the amino acid sequence in a polypeptide. Describe, with the aid of diagrams, how the sequence of nucleotides within a gene is used to construct a polypeptide – include the roles of messenger RNA, transfer RNA a ...
... Describe, with the aid of diagrams, the way in which a nucleotide sequence codes for the amino acid sequence in a polypeptide. Describe, with the aid of diagrams, how the sequence of nucleotides within a gene is used to construct a polypeptide – include the roles of messenger RNA, transfer RNA a ...
video slide - Wild about Bio
... flow of information from gene to protein is based on a triplet code: a series of nonoverlapping, threenucleotide words These triplets are the smallest units of uniform length that can code for all the amino acids Example: AGT at a particular position on a DNA strand results in the placement of t ...
... flow of information from gene to protein is based on a triplet code: a series of nonoverlapping, threenucleotide words These triplets are the smallest units of uniform length that can code for all the amino acids Example: AGT at a particular position on a DNA strand results in the placement of t ...
Lecture 4: Transcription networks – basic concepts 2.1 Introduction
... transcription when it binds the promoter. The activator transits rapidly between active and inactive forms. In its active form, it has a high affinity to a specific site (or sites) on the promoter. The signal Sx increases the probability that X is in its active form X*. Thus, X* binds the promoter o ...
... transcription when it binds the promoter. The activator transits rapidly between active and inactive forms. In its active form, it has a high affinity to a specific site (or sites) on the promoter. The signal Sx increases the probability that X is in its active form X*. Thus, X* binds the promoter o ...
ap® biology 2009 scoring guidelines - AP Central
... “RNA polymerase is an enzyme that attaches to a DNA sequence and begins transcribing it to mRNA.” “[I]t undergoes RNA splicing by the spliceosomes. These enzymes cut out the intron.” “Ribosomes are where proteins are made.” “When tRNA attaches, it brings with it an amino acid.” The maximum of 4 poin ...
... “RNA polymerase is an enzyme that attaches to a DNA sequence and begins transcribing it to mRNA.” “[I]t undergoes RNA splicing by the spliceosomes. These enzymes cut out the intron.” “Ribosomes are where proteins are made.” “When tRNA attaches, it brings with it an amino acid.” The maximum of 4 poin ...
Protein Synthesis Test Review
... Directions: Use your notes and examples to complete the review. Study until you are sure you’ll make an A, and then continue to study for another 20 minutes after that time (studying does NOT consist of staring at the review and/or putting your head down on the review….we have covered osmosis…it onl ...
... Directions: Use your notes and examples to complete the review. Study until you are sure you’ll make an A, and then continue to study for another 20 minutes after that time (studying does NOT consist of staring at the review and/or putting your head down on the review….we have covered osmosis…it onl ...
Protein Synthesis
... DNA “message” from the nucleus to the rest of the cell ii. tRNA – transfer RNA – brings or “transfers” amino acids from the cytoplasm to the ribosomes to assemble proteins iii.rRNA – ribosomal RNA – helps ...
... DNA “message” from the nucleus to the rest of the cell ii. tRNA – transfer RNA – brings or “transfers” amino acids from the cytoplasm to the ribosomes to assemble proteins iii.rRNA – ribosomal RNA – helps ...
hypothesize that AraC can exist in 2 states, P1 and P2
... -transcription activator that controls expression of genes involved in carbon and energy source utilization -since glucose is the preferred carbon source of E. coli, CAP ensures that other carbon utilization pathways are not expressed in the presence of glucose CATABOLITE REPRESSION -accordingly, ...
... -transcription activator that controls expression of genes involved in carbon and energy source utilization -since glucose is the preferred carbon source of E. coli, CAP ensures that other carbon utilization pathways are not expressed in the presence of glucose CATABOLITE REPRESSION -accordingly, ...
Document
... -so when the ribosome reaches these sequences – no more AAs are added and the ribosome detaches from the peptide strand and mRNA -a release factor cleaves the polypeptide chain from the tRNA and releases it from the ribosome (GTP hydrolysis) -the translation machine “breaks apart” – requires an enzy ...
... -so when the ribosome reaches these sequences – no more AAs are added and the ribosome detaches from the peptide strand and mRNA -a release factor cleaves the polypeptide chain from the tRNA and releases it from the ribosome (GTP hydrolysis) -the translation machine “breaks apart” – requires an enzy ...
lecture notes-molecular biology-web
... specified by the message. - The formation of the peptide bond between the two amino acids occurs on adjacent sites on the ribosome: the P or peptidyl site and the A or aminoacyl site. - The growing protein occupies the P site, while the next amino acid to be added occupies the A site. - As the pepti ...
... specified by the message. - The formation of the peptide bond between the two amino acids occurs on adjacent sites on the ribosome: the P or peptidyl site and the A or aminoacyl site. - The growing protein occupies the P site, while the next amino acid to be added occupies the A site. - As the pepti ...
7.2.7 Describe the promoter as an example of non
... The consequence of the inhibition of the lactose metabolism is that the concentration of undigested lactose now increases in E. Coli … Edited from: http://commons.wikimedia.org/wiki/File:Lac_Operon.svg ...
... The consequence of the inhibition of the lactose metabolism is that the concentration of undigested lactose now increases in E. Coli … Edited from: http://commons.wikimedia.org/wiki/File:Lac_Operon.svg ...
Nucleic Acids and Protein Synthesis
... • Chromosomes hold genes. Genes are made of DNA. A gene holds information that decides our colour of hair, colour of eyes etc. It also holds information for making proteins that may become enzymes or hormone for use within the body. ...
... • Chromosomes hold genes. Genes are made of DNA. A gene holds information that decides our colour of hair, colour of eyes etc. It also holds information for making proteins that may become enzymes or hormone for use within the body. ...
Gene Regulation of Eukaryotes
... 2. What is trans-acting factor? Concept trans-acting factors - usually they are proteins, that bind to the cis-acting elements to control gene expression. ...
... 2. What is trans-acting factor? Concept trans-acting factors - usually they are proteins, that bind to the cis-acting elements to control gene expression. ...
Bio 112 17 sp11
... 11. Define and explain the role of ribozymes. What three properties allow some RNA molecules to function as ribozymes? 12. Describe the functional and evolutionary significance of introns. 13. Explain why, due to alternative RNA splicing, the number of different protein products an organism can prod ...
... 11. Define and explain the role of ribozymes. What three properties allow some RNA molecules to function as ribozymes? 12. Describe the functional and evolutionary significance of introns. 13. Explain why, due to alternative RNA splicing, the number of different protein products an organism can prod ...
Discovery of a “transforming principle”
... structure of DNA was a simple repeating unit of GATCGATCGATC This is why no one thought it could be the genetic material with a structure this simple • Purines - Large organic bases – Adenine and Guanine • Pyrimidines - Small organic bases – Cytosine and Thymine, Uracil (RNA) ...
... structure of DNA was a simple repeating unit of GATCGATCGATC This is why no one thought it could be the genetic material with a structure this simple • Purines - Large organic bases – Adenine and Guanine • Pyrimidines - Small organic bases – Cytosine and Thymine, Uracil (RNA) ...
DNA
... structure of DNA was a simple repeating unit of GATCGATCGATC This is why no one thought it could be the genetic material with a structure this simple • Purines - Large organic bases – Adenine and Guanine • Pyrimidines - Small organic bases – Cytosine and Thymine, Uracil (RNA) ...
... structure of DNA was a simple repeating unit of GATCGATCGATC This is why no one thought it could be the genetic material with a structure this simple • Purines - Large organic bases – Adenine and Guanine • Pyrimidines - Small organic bases – Cytosine and Thymine, Uracil (RNA) ...
DNA and Its Proccesses
... • Create an amino acid sequence/chain from an mRNA template • Feed mRNA through ribosome • Add one amino acid (via tRNA) for each 3-letter mRNA segment (codon) • Stop when a STOP codon is reached ...
... • Create an amino acid sequence/chain from an mRNA template • Feed mRNA through ribosome • Add one amino acid (via tRNA) for each 3-letter mRNA segment (codon) • Stop when a STOP codon is reached ...
02 DNA and RNA and protein synthesis
... When two are there, one will attach its amino acid to the amino acid of the other one, creating a chain of amino acids. Once this happens, that tRNA leaves and the one with the chain moves to its place. ...
... When two are there, one will attach its amino acid to the amino acid of the other one, creating a chain of amino acids. Once this happens, that tRNA leaves and the one with the chain moves to its place. ...
Ch 18
... • Copies of the activators recognize specific control elements and promote simultaneous transcription of the genes ...
... • Copies of the activators recognize specific control elements and promote simultaneous transcription of the genes ...
Ch 18
... To initiate transcription, eukaryotic RNA polymerase requires the assistance of proteins called transcription factors (TFs) – General TFs are essential for the transcription of all protein-coding genes – In eukaryotes, high levels of transcription of particular genes depend on control elements int ...
... To initiate transcription, eukaryotic RNA polymerase requires the assistance of proteins called transcription factors (TFs) – General TFs are essential for the transcription of all protein-coding genes – In eukaryotes, high levels of transcription of particular genes depend on control elements int ...
Lecture, Gene Expression
... really). Once a new cell is made, it can begin to use the DNA to create phenotypes. We call this next part Gene Expression, or the production of a phenotype given information from the genotype (“gene” = segments of DNA) and it can be divided into 2 steps: Transcription and Translation. ...
... really). Once a new cell is made, it can begin to use the DNA to create phenotypes. We call this next part Gene Expression, or the production of a phenotype given information from the genotype (“gene” = segments of DNA) and it can be divided into 2 steps: Transcription and Translation. ...
proteins
... Genetic code: table that gives the correspondence between each possible triplet and each amino acid ...
... Genetic code: table that gives the correspondence between each possible triplet and each amino acid ...
CHAPTER 14
... mutation affect the length of the RNA? Explain. Answer: The mutation would not affect the length of the RNA, because it would not terminate transcription. However, the encoded polypeptide would be shorter. FIGURE 14.5 Concept check: What does the term “consensus sequence” mean? Answer: When comparin ...
... mutation affect the length of the RNA? Explain. Answer: The mutation would not affect the length of the RNA, because it would not terminate transcription. However, the encoded polypeptide would be shorter. FIGURE 14.5 Concept check: What does the term “consensus sequence” mean? Answer: When comparin ...