Name______________________________________________
... Using a pipette, slowly add cold rubbing alcohol; let the alcohol run down the side of the test tube so it forms a layer on top of the soapy liquid. Add alcohol until you have about 2 cm of alcohol in the tube. Alcohol is less dense than water, so it floats on top. Do not mix or bump the test tube f ...
... Using a pipette, slowly add cold rubbing alcohol; let the alcohol run down the side of the test tube so it forms a layer on top of the soapy liquid. Add alcohol until you have about 2 cm of alcohol in the tube. Alcohol is less dense than water, so it floats on top. Do not mix or bump the test tube f ...
Nucleic Acids and Protein Synthesis
... 1) A is hydrogen-bonded to T 2) G is hydrogen-bonded to C f. Watson and Crick - Nobel Prize in 1954 for their model of DNA. ...
... 1) A is hydrogen-bonded to T 2) G is hydrogen-bonded to C f. Watson and Crick - Nobel Prize in 1954 for their model of DNA. ...
Chapter 24
... • RT does not have the editing function (3’→5’ exonuclease). Therefore there is high error rate in replication, and thus RT has a high mutation rate. • AZT, ddI, ddC, and 2’3’-didehydro-3’-deoxythymine inhibit the RT activity by stopping the chain elongation because these nucleotide analogues do not ...
... • RT does not have the editing function (3’→5’ exonuclease). Therefore there is high error rate in replication, and thus RT has a high mutation rate. • AZT, ddI, ddC, and 2’3’-didehydro-3’-deoxythymine inhibit the RT activity by stopping the chain elongation because these nucleotide analogues do not ...
DNA, Replication and Protein Synthesis
... insertion of the wrong base pair or a deletion are corrected in the final step. – Polymerase is the enzyme that is involved in this process. ...
... insertion of the wrong base pair or a deletion are corrected in the final step. – Polymerase is the enzyme that is involved in this process. ...
DNA & RNA
... What does it mean to Translate? ◦ Hint: Trans + Late “To determine” or “to decipher” ...
... What does it mean to Translate? ◦ Hint: Trans + Late “To determine” or “to decipher” ...
09-DNA-Replication
... Since DNA polymerase only works in one direction: A continuous leading strand is synthesized A discontinuous lagging strand is synthesized DNA ligase splices together the short segments of the discontinuous strand ...
... Since DNA polymerase only works in one direction: A continuous leading strand is synthesized A discontinuous lagging strand is synthesized DNA ligase splices together the short segments of the discontinuous strand ...
Study Guide for DNA Structure and Replication
... bonds between the sugars and phosphates. The two strands (or halves) of a DNA molecule are connected by hydrogen bonds between the bases of nucleotides DNA base pairing is complementary. A (adenine) only bonds with T (thymine) on the opposite DNA strand of a helix, and G (guanine) only bonds wit ...
... bonds between the sugars and phosphates. The two strands (or halves) of a DNA molecule are connected by hydrogen bonds between the bases of nucleotides DNA base pairing is complementary. A (adenine) only bonds with T (thymine) on the opposite DNA strand of a helix, and G (guanine) only bonds wit ...
Unit 3A Study Guide
... 3. The amount of guanine in an organism always equals the amount of ___________ (A) protein. (B) thymine (C) adenine (D) cytosine 4. Which is NOT true about DNA replication? (A) It must occur before a cell can divide. (B) It creates two new strands that are identical to the original strand. (C) The ...
... 3. The amount of guanine in an organism always equals the amount of ___________ (A) protein. (B) thymine (C) adenine (D) cytosine 4. Which is NOT true about DNA replication? (A) It must occur before a cell can divide. (B) It creates two new strands that are identical to the original strand. (C) The ...
Proteins - Mr. Vickers
... The Structure of DNA: 4 Kinds of Nitrogen Bases Adenine (A) Guanine (G) Thymine (T) Cytosine (C) ...
... The Structure of DNA: 4 Kinds of Nitrogen Bases Adenine (A) Guanine (G) Thymine (T) Cytosine (C) ...
lecture 7
... * Nucleotide excision repair (NER), which recognizes bulky, helixdistorting lesions ...
... * Nucleotide excision repair (NER), which recognizes bulky, helixdistorting lesions ...
Section 18.2
... • You can think of catalysts as helper molecules that allow a reaction to proceed in many small steps instead of all at once. ...
... • You can think of catalysts as helper molecules that allow a reaction to proceed in many small steps instead of all at once. ...
DNA and Genetic Material
... there is lactose around and off when lactose is absent. • The story is more complicated than that! ...
... there is lactose around and off when lactose is absent. • The story is more complicated than that! ...
1. A double helix looks like: A. A solid sphere B. A hollow tube C. A
... A. Genes that code for disease resistance can be added to plant DNA B. Genes from healthy human beings can be added to plant DNA C. Genes from vaccines can be added to plant DNA D. Genes from viruses and pathogens can be added to plant DNA 8. In the term "nucleic acid," what does the word "nucleic" ...
... A. Genes that code for disease resistance can be added to plant DNA B. Genes from healthy human beings can be added to plant DNA C. Genes from vaccines can be added to plant DNA D. Genes from viruses and pathogens can be added to plant DNA 8. In the term "nucleic acid," what does the word "nucleic" ...
The discovery of DNA
... Name at least two scientists that contributed to deriving the structure of DNA. ...
... Name at least two scientists that contributed to deriving the structure of DNA. ...
Molecular Genetics - Ursuline High School
... will need to perform its life functions. As a result of Replication, the Mother cell copies its DNA and gives an exact copy to each resulting Daughter cell. This ensures that the Daughter cells will have the genetic information (DNA) they need to survive. ...
... will need to perform its life functions. As a result of Replication, the Mother cell copies its DNA and gives an exact copy to each resulting Daughter cell. This ensures that the Daughter cells will have the genetic information (DNA) they need to survive. ...
DNA What is it? - demonstration456
... bases that they are made of, Adenine, Thymine, Guanine, and Cytosine. A always pairs with T. C always pairs with G. A trick to help remember AT the Cricket Ground. AT is a word. CG look similar. ...
... bases that they are made of, Adenine, Thymine, Guanine, and Cytosine. A always pairs with T. C always pairs with G. A trick to help remember AT the Cricket Ground. AT is a word. CG look similar. ...
Daily TAKS Connection: DNA
... b. a sequence of bases within a DNA section c. points of DNA separation during protein synthesis ...
... b. a sequence of bases within a DNA section c. points of DNA separation during protein synthesis ...
Sample exam questions: DNA, transcription, and translation
... protein. Assume it is read left to right and the columns represent transcriptional and translational alignments. (a copy of the codon table is on the last page of this exam) DNA double helix ...
... protein. Assume it is read left to right and the columns represent transcriptional and translational alignments. (a copy of the codon table is on the last page of this exam) DNA double helix ...
DNA The Double Helix
... instructions and information needed to function. The process of copying DNA is called replication. Replication occurs in a unique way – instead of copying a complete new strand of DNA, the process “saves” or conserves one of the original strand. For this reason, replication is called semiconservati ...
... instructions and information needed to function. The process of copying DNA is called replication. Replication occurs in a unique way – instead of copying a complete new strand of DNA, the process “saves” or conserves one of the original strand. For this reason, replication is called semiconservati ...
PowerPoint Notes on Chapter 9
... role. This proofreading reduces errors in DNA replication to about one error per 1 billion nucleotides. The Rate of Replication Replication does not begin at one end of the DNA molecule and end at the other. The circular DNA molecules found in prokaryotes usually have two replication forks that begi ...
... role. This proofreading reduces errors in DNA replication to about one error per 1 billion nucleotides. The Rate of Replication Replication does not begin at one end of the DNA molecule and end at the other. The circular DNA molecules found in prokaryotes usually have two replication forks that begi ...
DNA Characteristics
... Ratios of DNA molecule => A:T & G:C always close to 1:1 Different percentages for different species leading to different traits ...
... Ratios of DNA molecule => A:T & G:C always close to 1:1 Different percentages for different species leading to different traits ...
DNA - TeacherWeb
... B. In 1953, James Watson and Francis Crick came up with a model for DNA that looks like a twisted ladder. Each rail of the ladder is made up of ___________ and _____________ molecules and the “rungs” of the ladder are made up of _____________ ___________. Hydrogen bonds between the nitrogen bases ho ...
... B. In 1953, James Watson and Francis Crick came up with a model for DNA that looks like a twisted ladder. Each rail of the ladder is made up of ___________ and _____________ molecules and the “rungs” of the ladder are made up of _____________ ___________. Hydrogen bonds between the nitrogen bases ho ...
Molecular Biology 2.6- Structure of DNA and RNA
... Wilkins gave Watson/Crick photo without Franklin’s knowledge. Photo provided evidence that DNA had the following features: – DNA is a helix. – One part of the helix is repeated. ...
... Wilkins gave Watson/Crick photo without Franklin’s knowledge. Photo provided evidence that DNA had the following features: – DNA is a helix. – One part of the helix is repeated. ...
DNA replication
DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance. DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.In a cell, DNA replication begins at specific locations, or origins of replication, in the genome. Unwinding of DNA at the origin and synthesis of new strands results in replication forks growing bidirectional from the origin. A number of proteins are associated with the replication fork which helps in terms of the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new DNA by adding complementary nucleotides to the template strand.DNA replication can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to initiate DNA synthesis at known sequences in a template DNA molecule. The polymerase chain reaction (PCR), a common laboratory technique, cyclically applies such artificial synthesis to amplify a specific target DNA fragment from a pool of DNA.