Linkage
... strands apart. 3. __________________: enzyme which relieves stress on the DNA molecule by allowing free rotation around a single strand. • Priming: 1._____ primers: before new DNA strands can form, there must be small pre-existing primers (RNA) present to start the addition of new nucleotides (DNA P ...
... strands apart. 3. __________________: enzyme which relieves stress on the DNA molecule by allowing free rotation around a single strand. • Priming: 1._____ primers: before new DNA strands can form, there must be small pre-existing primers (RNA) present to start the addition of new nucleotides (DNA P ...
DNA HISTORY READINGS
... Who wrote the article? What two reasons did the authors give for rejecting the previously published hypothesis of Linus Pauling? What general structure do the authors propose for DNA? Do the two chains run in the same direction? How many times does the molecular structure repeat for one complete tur ...
... Who wrote the article? What two reasons did the authors give for rejecting the previously published hypothesis of Linus Pauling? What general structure do the authors propose for DNA? Do the two chains run in the same direction? How many times does the molecular structure repeat for one complete tur ...
Chapter 12 Study Guide
... 13.) What are the three types of RNA and explain their role? - mRNA: amino acids are made from these instructions -rRNA: ribosomal RNA -tRNA: transfers the matching amino acid based on mRNA message 14.) What is a promoter and what is its role in protein synthesis? - region in the DNA sequence that t ...
... 13.) What are the three types of RNA and explain their role? - mRNA: amino acids are made from these instructions -rRNA: ribosomal RNA -tRNA: transfers the matching amino acid based on mRNA message 14.) What is a promoter and what is its role in protein synthesis? - region in the DNA sequence that t ...
Name
... 6.) Start from the end of the taped down string, place a Sugar, then a Phosphate, alternating with the sugars and phosphates, and then tape the 12 Sugars and 12 Phosphates on each string. For the other string, start with a Phosphate and end with a sugar. 7.) To each Sugar on one strand, tape a nitro ...
... 6.) Start from the end of the taped down string, place a Sugar, then a Phosphate, alternating with the sugars and phosphates, and then tape the 12 Sugars and 12 Phosphates on each string. For the other string, start with a Phosphate and end with a sugar. 7.) To each Sugar on one strand, tape a nitro ...
Station 7 - Components of DNA
... • DNA molecules contain four nitrogenous bases: adenine, guanine, cytosine, and thymine. • Two bases—adenine and guanine—are called purines. • Two bases—thymine and cytosine—are called pyrimidines. • Genes are pieces of DNA that pass traits to offspring. • Nucleotides are made up of a sugar, a phosp ...
... • DNA molecules contain four nitrogenous bases: adenine, guanine, cytosine, and thymine. • Two bases—adenine and guanine—are called purines. • Two bases—thymine and cytosine—are called pyrimidines. • Genes are pieces of DNA that pass traits to offspring. • Nucleotides are made up of a sugar, a phosp ...
DNA – The Double Helix In 1952, Rosalind Franklin discovered that
... their coded letters: A, T, C, and G. These bases always bond in a certain way. Adenine will only bond with Thymine. Guanine will only bond with Cytosine. This means the amount of cytosine in a cell will always equal the amount of guanine and the amount of adenine will always equal the amount of thym ...
... their coded letters: A, T, C, and G. These bases always bond in a certain way. Adenine will only bond with Thymine. Guanine will only bond with Cytosine. This means the amount of cytosine in a cell will always equal the amount of guanine and the amount of adenine will always equal the amount of thym ...
TRANSCRIPTION • the process of copying the DNA code onto a
... mRNA is built in the direction of 5' to 3' mRNA will use one side of the DNA, called the template and copy the code (mRNA is complementary to the template strand the DNA strand not used in transcription is the coding strand and is identical to the mRNA (except for T in DNA and U in mRNA) ins ...
... mRNA is built in the direction of 5' to 3' mRNA will use one side of the DNA, called the template and copy the code (mRNA is complementary to the template strand the DNA strand not used in transcription is the coding strand and is identical to the mRNA (except for T in DNA and U in mRNA) ins ...
DNA = DEOXYRIBONUCLEIC ACID
... Transcription begins on the area of DNA that contains the gene. Each gene has three regions: 1. Promotor - turns the gene on or off 2. Coding region - has the information on how to construct the protein 3. Termination sequence - signals the end of the gene RNA Polymerase is responsible for reading ...
... Transcription begins on the area of DNA that contains the gene. Each gene has three regions: 1. Promotor - turns the gene on or off 2. Coding region - has the information on how to construct the protein 3. Termination sequence - signals the end of the gene RNA Polymerase is responsible for reading ...
Biology I (H) NAME
... Describe the bonds that hold the bases pairs together in the double helix. ...
... Describe the bonds that hold the bases pairs together in the double helix. ...
DNA
... 2. Replication fork - is the point at which the two strands separate - there may be thousands of these along a single DNA molecule to permit faster replication ...
... 2. Replication fork - is the point at which the two strands separate - there may be thousands of these along a single DNA molecule to permit faster replication ...
File
... 12. __mRNA________ is a temporary copy of DNA that is used during transcription and translation, then destroyed after it is used ...
... 12. __mRNA________ is a temporary copy of DNA that is used during transcription and translation, then destroyed after it is used ...
DNA Unit
... - result is two identical strands of DNA - process has a proofreading system to correct errors ...
... - result is two identical strands of DNA - process has a proofreading system to correct errors ...
genetics, dna replication, protein synthesis, biotechnology
... 3. Curly hair in humans, white fur in guinea pigs, and needle like spines in cacti all partly describe each organisms a. Alleles b. Autosomes c. Chromosomes d. Phenotype 4. The appearance of a recessive trait in offspring of animals most probably indicates that a. Both parents carried at least one r ...
... 3. Curly hair in humans, white fur in guinea pigs, and needle like spines in cacti all partly describe each organisms a. Alleles b. Autosomes c. Chromosomes d. Phenotype 4. The appearance of a recessive trait in offspring of animals most probably indicates that a. Both parents carried at least one r ...
Biology
... 2. diagram and label the basic structure of DNA 3. describe the basic structure of the eukaryotic chromosome 4. trace the process of DNA replication 5. summarize the role of the enzymes involved in DNA replication 6. explain how messenger RNA, ribosomal RNA, and transfer RNA are involved in the tran ...
... 2. diagram and label the basic structure of DNA 3. describe the basic structure of the eukaryotic chromosome 4. trace the process of DNA replication 5. summarize the role of the enzymes involved in DNA replication 6. explain how messenger RNA, ribosomal RNA, and transfer RNA are involved in the tran ...
DISCOVERY OF DNA
... 4. Which of the following is NOT a correct structure of a nucleotide? a. adenine—deoxyribose—phosphate c. cytosine—deoxyribose—phosphate b. adenine—ribose—phosphate d. guanine—deoxyribose—phosphate 5. The percentage of adenine in DNA is a. equal to the percentage of cytosine. b. equal to the percent ...
... 4. Which of the following is NOT a correct structure of a nucleotide? a. adenine—deoxyribose—phosphate c. cytosine—deoxyribose—phosphate b. adenine—ribose—phosphate d. guanine—deoxyribose—phosphate 5. The percentage of adenine in DNA is a. equal to the percentage of cytosine. b. equal to the percent ...
The History of DNA
... the DNA strands by weight • After one generation all DNA was medium between heavy and light (thus SEMI-CONSERVATIVE) • After two generation DNA had two bands: medium and light. ...
... the DNA strands by weight • After one generation all DNA was medium between heavy and light (thus SEMI-CONSERVATIVE) • After two generation DNA had two bands: medium and light. ...
dna model activity
... phosphate group, and a nitrogen base. The basic unit of DNA, the nucleotide, is made up of one of each. A molecule of DNA may contain as many as 200,000 nucleotides. The nucleotides make up two chains that are linked and twisted around one another in the form of a double helix. The rungs of the DNA ...
... phosphate group, and a nitrogen base. The basic unit of DNA, the nucleotide, is made up of one of each. A molecule of DNA may contain as many as 200,000 nucleotides. The nucleotides make up two chains that are linked and twisted around one another in the form of a double helix. The rungs of the DNA ...
DNA Structure - WordPress.com
... The order of the nucleotides (bases) in a DNA is a code that provides instructions for making proteins. ...
... The order of the nucleotides (bases) in a DNA is a code that provides instructions for making proteins. ...
DNA Structure - WordPress.com
... A always pairs with T G always pairs with C The bases that pair with each other are called complimentary ...
... A always pairs with T G always pairs with C The bases that pair with each other are called complimentary ...
CHAPTER 13, DNA STRUCTURE AND FUNCTION QUIZ
... _____24. Which of the following is Not one of the four bases that makes up DNA? a) adenine b) uracil c) guanine d) cytosine e) thymine _____25. Which of the following statements about DNA replication is Not correct? a) Unwinding of the DNA molecule occurs as hydrogen bonds break. b) Replication occu ...
... _____24. Which of the following is Not one of the four bases that makes up DNA? a) adenine b) uracil c) guanine d) cytosine e) thymine _____25. Which of the following statements about DNA replication is Not correct? a) Unwinding of the DNA molecule occurs as hydrogen bonds break. b) Replication occu ...
DNA History, Mutations Gene Regulation
... sequences = jumping genes • DNA sequences scattered randomly about on the chromosomes • Unusual: are repeated thousands of times/can move around from one chromosome to another/Maize • Began Dec. 7, 1941 • Nobel Prize: Physiology and Medicine 1983 ...
... sequences = jumping genes • DNA sequences scattered randomly about on the chromosomes • Unusual: are repeated thousands of times/can move around from one chromosome to another/Maize • Began Dec. 7, 1941 • Nobel Prize: Physiology and Medicine 1983 ...
What we already know:
... • What three components make up the nucleotide subunit? • What are the four bases and what is the rule about how they pair together? • Describe what is meant by a “triplet code.” • What are the steps of DNA replication? ...
... • What three components make up the nucleotide subunit? • What are the four bases and what is the rule about how they pair together? • Describe what is meant by a “triplet code.” • What are the steps of DNA replication? ...
Prof. Kamakaka`s Lecture 8 Notes
... At pH 7, Some bases (U, T, G) will be protonated and others (A, C) will be deprotonated ...
... At pH 7, Some bases (U, T, G) will be protonated and others (A, C) will be deprotonated ...
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.