Lecture 2 DNA Structure
... • Eukaryotic chromosomes are made of chromatin, a combination of DNA and proteins, and its levels of condensation varies during the different stages of the cell life cycle. When looked with an electron microscope, chromatin shows a structure of “beads-on-a-string” structure. These “beads” are called ...
... • Eukaryotic chromosomes are made of chromatin, a combination of DNA and proteins, and its levels of condensation varies during the different stages of the cell life cycle. When looked with an electron microscope, chromatin shows a structure of “beads-on-a-string” structure. These “beads” are called ...
Chapter 4 Extended Chapter Outline
... a. The two strands are copied by separate DNA polymerase molecules moving in opposite directions. i. One polymerase makes a long, continuous strand; the other makes short strands moving away from the replication fork, and these are joined together by DNA ligase. b. Two new daughter DNA molecules are ...
... a. The two strands are copied by separate DNA polymerase molecules moving in opposite directions. i. One polymerase makes a long, continuous strand; the other makes short strands moving away from the replication fork, and these are joined together by DNA ligase. b. Two new daughter DNA molecules are ...
Gene mutations and their effects
... bases occur next to each other along one of the two DNA strands, they can become linked to form a thymine dimer. The dimer can be replicated as a single base, which results in a frameshift, possibly mutation, possibly resulting in skin cancer. • Chemicals – there are hundreds of chemical mutagens ...
... bases occur next to each other along one of the two DNA strands, they can become linked to form a thymine dimer. The dimer can be replicated as a single base, which results in a frameshift, possibly mutation, possibly resulting in skin cancer. • Chemicals – there are hundreds of chemical mutagens ...
DNA Technology, Bacteria, Virus and Meiosis Test REVIEW
... Use the information to answer the question that follows: A scientist is using an ampicillin-sensitive strain of bacteria that cannot use lactose because it has a nonfunctional gene in the lac operon. She has two plasmids. One contains a functional copy of the affected gene of the lac operon, and the ...
... Use the information to answer the question that follows: A scientist is using an ampicillin-sensitive strain of bacteria that cannot use lactose because it has a nonfunctional gene in the lac operon. She has two plasmids. One contains a functional copy of the affected gene of the lac operon, and the ...
RNA Polymerase II analysis in Drosophila Melanogaster
... Most of the differences in nucleotides between organisms are situated in noncoding DNA regions. These non coding regions affect the expression levels of genes thus making phenotypes depending more on differential expression rather than genes mutation. This project aim is to study the behaviour of RN ...
... Most of the differences in nucleotides between organisms are situated in noncoding DNA regions. These non coding regions affect the expression levels of genes thus making phenotypes depending more on differential expression rather than genes mutation. This project aim is to study the behaviour of RN ...
G - AP Bio Take 5
... Transcription: Making mRNA The parts: transcribed DNA strand = template strand untranscribed DNA strand = coding strand The complementary RNA strand is same sequence as coding strand Uses enzyme: RNA polymerase ...
... Transcription: Making mRNA The parts: transcribed DNA strand = template strand untranscribed DNA strand = coding strand The complementary RNA strand is same sequence as coding strand Uses enzyme: RNA polymerase ...
Biology Fall Review - SandersBiologyStuff
... Sequence the complementary strand when given a template strand of DNA 83. In DNA, the nitrogen base pairing rules are: A pairs with _____ and C pairs with _____ 84. For DNA replication the template strand was TGCTAGATTCGA, what would be the base sequence of the complementary strand?_________________ ...
... Sequence the complementary strand when given a template strand of DNA 83. In DNA, the nitrogen base pairing rules are: A pairs with _____ and C pairs with _____ 84. For DNA replication the template strand was TGCTAGATTCGA, what would be the base sequence of the complementary strand?_________________ ...
Part 1
... 1. Template: A polynucleotide DNA strand that serves as the guide for making a complementary polynucleotide. 2. Origin of replication: Unique sequences in the genome where replication is initiated. 3. Replication fork: The point where the two parental DNA strands separate to allow replication. ...
... 1. Template: A polynucleotide DNA strand that serves as the guide for making a complementary polynucleotide. 2. Origin of replication: Unique sequences in the genome where replication is initiated. 3. Replication fork: The point where the two parental DNA strands separate to allow replication. ...
DNA QUIZ_2015 - Cobb Learning
... a. Holmes and Watson b. Chargaff and Edmond c. Watson and Crick d. Franklin and Rosland 2. The complementary strand to the DNA sequence 5’-TAGTCA-3’ is: a. ATGAGT b. GACAGT c. ATCAGT d. TAGTCA 3. What materials make up each nucleotide in a DNA molecule? a. Chromosomes and genes b. Sugar, phosphate, ...
... a. Holmes and Watson b. Chargaff and Edmond c. Watson and Crick d. Franklin and Rosland 2. The complementary strand to the DNA sequence 5’-TAGTCA-3’ is: a. ATGAGT b. GACAGT c. ATCAGT d. TAGTCA 3. What materials make up each nucleotide in a DNA molecule? a. Chromosomes and genes b. Sugar, phosphate, ...
DNA Repair and Recombination
... • If both strands of DNA break, there is no easy way to repair it: the ends just float freely away from each other. • One important mechanism of repairing double stranded breaks is non-homologous end joining. • Proteins bind to the broken DNA ends, then clean them by filling in single stranded gaps ...
... • If both strands of DNA break, there is no easy way to repair it: the ends just float freely away from each other. • One important mechanism of repairing double stranded breaks is non-homologous end joining. • Proteins bind to the broken DNA ends, then clean them by filling in single stranded gaps ...
Gene Technology
... extracted from the pancreases of slaughtered cows and pigs and then purified. Today, the human insulin gene is cloned ...
... extracted from the pancreases of slaughtered cows and pigs and then purified. Today, the human insulin gene is cloned ...
short_answer_Barcoding_exam_Key
... It allows the PCR process to occur which requires repeated heating and cooling steps. This will allow mass quantities of DNA to be copies as needed. It doesn’t denature at high temps unlike other enzymes. 33. Where does Taq originate in nature? (2) From the bacteria residing in geysers in Yellowston ...
... It allows the PCR process to occur which requires repeated heating and cooling steps. This will allow mass quantities of DNA to be copies as needed. It doesn’t denature at high temps unlike other enzymes. 33. Where does Taq originate in nature? (2) From the bacteria residing in geysers in Yellowston ...
Biology Test Chapters 13 Name and Honor Code: 1. The insertion of
... b. autosomes c. vectors d. transgenic organisms 6. The process by which desired traits of certain plants & animals are selected and passed on to their future generations: a. karyotype b. selective breeding c. human genome d. gene therapy 7. Bacterial proteins that have the ability to cut both strand ...
... b. autosomes c. vectors d. transgenic organisms 6. The process by which desired traits of certain plants & animals are selected and passed on to their future generations: a. karyotype b. selective breeding c. human genome d. gene therapy 7. Bacterial proteins that have the ability to cut both strand ...
Chapter_17_answers
... o first pulls 2 DNA strands apart o also adds new RNA nucleotides (to 3’ end only) o transcription unit = piece of DNA that is transcribed onto RNA (the whole DNA molecule isn’t transcribed at once!!) Stages 1. Initiation Promoter region o Initial site of RNA polymerase attachment o Includes sta ...
... o first pulls 2 DNA strands apart o also adds new RNA nucleotides (to 3’ end only) o transcription unit = piece of DNA that is transcribed onto RNA (the whole DNA molecule isn’t transcribed at once!!) Stages 1. Initiation Promoter region o Initial site of RNA polymerase attachment o Includes sta ...
Protein synthesis - hrsbstaff.ednet.ns.ca
... Ribosomal RNA (rRNA): are structural components of a ribosomes itself. It binds with proteins to provide a construction site for the assembly of the polypeptides. ...
... Ribosomal RNA (rRNA): are structural components of a ribosomes itself. It binds with proteins to provide a construction site for the assembly of the polypeptides. ...
Powerpoint document
... • Nucleotides have three parts: sugar (ribose in RNA, deoxyribose in DNA), base (purine,A, G, and pyrimidine, C, T or U), and phosphate group. ...
... • Nucleotides have three parts: sugar (ribose in RNA, deoxyribose in DNA), base (purine,A, G, and pyrimidine, C, T or U), and phosphate group. ...
Replisome
The replisome is a complex molecular machine that carries out replication of DNA. The replisome first unwinds double stranded DNA into two single strands. For each of the resulting single strands, a new complementary sequence of DNA is synthesized. The net result is formation of two new double stranded DNA sequences that are exact copies of the original double stranded DNA sequence.In terms of structure, the replisome is composed of two replicative polymerase complexes, one of which synthesizes the leading strand, while the other synthesizes the lagging strand. The replisome is composed of a number of proteins including helicase, RFC, PCNA, gyrase/topoisomerase, SSB/RPA, primase, DNA polymerase I, RNAse H, and ligase.