DNA Replication lab
... to add in the 5’ to 3’ direction so the sides are antiparallel. Connect the two sides. Build a second DNA model by adding new nucleotides to the right half of the original model. Part B Questions: 1. Do the two molecules contain the same number of rungs? 2. What enzyme is responsible for “unzipping” ...
... to add in the 5’ to 3’ direction so the sides are antiparallel. Connect the two sides. Build a second DNA model by adding new nucleotides to the right half of the original model. Part B Questions: 1. Do the two molecules contain the same number of rungs? 2. What enzyme is responsible for “unzipping” ...
Slide 1
... Ex: Hold DNA out straight so that it has no Writhe, add of take out twist, then let fold up (Twist goes into Writhe). Normal DNA is negatively supercoiled, -0.06 = 6 turns for every 100 taken out. Why? Helps unwind DNA– makes it easier to uncoil, separate strands. Enzymes which do this called Topois ...
... Ex: Hold DNA out straight so that it has no Writhe, add of take out twist, then let fold up (Twist goes into Writhe). Normal DNA is negatively supercoiled, -0.06 = 6 turns for every 100 taken out. Why? Helps unwind DNA– makes it easier to uncoil, separate strands. Enzymes which do this called Topois ...
DNA Structure and Protein Synthesis notes-2008
... Structure of DNA is related to 2 primary functions: 1. Copy itself exactly for new cells that are created 2. Store and use information to direct cell activities ...
... Structure of DNA is related to 2 primary functions: 1. Copy itself exactly for new cells that are created 2. Store and use information to direct cell activities ...
DNA
... gene. The result is that their cells stop synthesizing the myostatin protein about halfway through. Several breeds of “double-muscled” cattle have this same deletion mutation, but other double-muscled breeds have totally different mutation. Other animals, including several breeds of dogs, such as wh ...
... gene. The result is that their cells stop synthesizing the myostatin protein about halfway through. Several breeds of “double-muscled” cattle have this same deletion mutation, but other double-muscled breeds have totally different mutation. Other animals, including several breeds of dogs, such as wh ...
How many tetrads are there in metaphase I of
... A. cleaves hydrogen bonds that join the two strands of DNA B. creates a polymer that consists of many molecules of DNA C. adds appropriate nucleotides to a newly forming DNA strand D. can advance in either direction along a single strand of DNA 14. For the DNA strand 5'-TACGATCATAT-3' the correct co ...
... A. cleaves hydrogen bonds that join the two strands of DNA B. creates a polymer that consists of many molecules of DNA C. adds appropriate nucleotides to a newly forming DNA strand D. can advance in either direction along a single strand of DNA 14. For the DNA strand 5'-TACGATCATAT-3' the correct co ...
DNA
... structure with the deoxyribose (sugar) and phosphate backbone and the same four bases. The only thing that distinguishes the DNA of organisms is the order and number of the nitrogen bases. Human DNA differs from chimpanzees by 1.6%. • Our DNA is structurally the same as a cow, ...
... structure with the deoxyribose (sugar) and phosphate backbone and the same four bases. The only thing that distinguishes the DNA of organisms is the order and number of the nitrogen bases. Human DNA differs from chimpanzees by 1.6%. • Our DNA is structurally the same as a cow, ...
DNA to RNA to Protein
... Replication is semi-conservative meaning that each new double helix consists of an old strand of DNA ...
... Replication is semi-conservative meaning that each new double helix consists of an old strand of DNA ...
Chapter 16 PPT
... correct errors in base pairing • DNA can be damaged by chemicals, radioactive emissions, X-rays, UV light, and certain molecules (in cigarette smoke for example) • In nucleotide excision repair, a nuclease cuts out and replaces damaged stretches of DNA Copyright © 2008 Pearson Education Inc., publis ...
... correct errors in base pairing • DNA can be damaged by chemicals, radioactive emissions, X-rays, UV light, and certain molecules (in cigarette smoke for example) • In nucleotide excision repair, a nuclease cuts out and replaces damaged stretches of DNA Copyright © 2008 Pearson Education Inc., publis ...
Protein Synthesis
... along the parent chain of DNA in the 3’-5’ direction and bonds free floating nucleotides to the parent (original) chain-- based on base pairing rules. • The newly assembled strand is called a leading strand of nucleotides and reforms the double helix. • Each new strand is a complement of parent stra ...
... along the parent chain of DNA in the 3’-5’ direction and bonds free floating nucleotides to the parent (original) chain-- based on base pairing rules. • The newly assembled strand is called a leading strand of nucleotides and reforms the double helix. • Each new strand is a complement of parent stra ...
DNA structure and replication
... Illustrates transcription (Creation of mRNA) and translation (Creation of a protein) (How mRNA is created and the code from a DNA molecule allows a unique protein to be made) This comic must represent each player ...
... Illustrates transcription (Creation of mRNA) and translation (Creation of a protein) (How mRNA is created and the code from a DNA molecule allows a unique protein to be made) This comic must represent each player ...
DNA THE CODE OF LIFE 30 JANUARY 2013 Key Concepts
... (Life Sciences for All, Chapter 4 DNA and the genetic code) There are two kinds of nucleic acids: deoxyribonucleic acid (DNA), ribonucleic acid (RNA). DNA is found in the nucleus of eukaryotic cells where it forms part of the chromatin. Some also found inside the mitochondria and chloroplasts of the ...
... (Life Sciences for All, Chapter 4 DNA and the genetic code) There are two kinds of nucleic acids: deoxyribonucleic acid (DNA), ribonucleic acid (RNA). DNA is found in the nucleus of eukaryotic cells where it forms part of the chromatin. Some also found inside the mitochondria and chloroplasts of the ...
DNA - Hermantown
... information including measurements. The double helix model they developed conformed with all known information and they could even see how DNA could replicate. ...
... information including measurements. The double helix model they developed conformed with all known information and they could even see how DNA could replicate. ...
Test Review Sheet - Lyndhurst Schools
... of restriction enzymes → visualization of DNA fragments B) addition of radioactive probe → Southern blotting → gel electrophoresis → hybridization → visualization of DNA fragments on x-ray film C) extraction of DNA from cells → hybridization → Southern blotting → gel electrophoresis → visualization ...
... of restriction enzymes → visualization of DNA fragments B) addition of radioactive probe → Southern blotting → gel electrophoresis → hybridization → visualization of DNA fragments on x-ray film C) extraction of DNA from cells → hybridization → Southern blotting → gel electrophoresis → visualization ...
DNA, RNA, and Protein Synthesis
... • Both are made of nucleotides • Both are involved in protein synthesis • DNA has the sugar deoxyribose, while RNA has the sugar ribose • RNA uses the nitrogenous base uracil (U) instead of thymine (T) used in DNA • RNA is single stranded, while DNA is double stranded • RNA is usually MUCH shorter t ...
... • Both are made of nucleotides • Both are involved in protein synthesis • DNA has the sugar deoxyribose, while RNA has the sugar ribose • RNA uses the nitrogenous base uracil (U) instead of thymine (T) used in DNA • RNA is single stranded, while DNA is double stranded • RNA is usually MUCH shorter t ...
DNA.ppt
... – What separates one protein from another are shape, size, and which amino acids are in it. – These amino acids come from the proteins that we eat, then are broken down to be used by the body. ...
... – What separates one protein from another are shape, size, and which amino acids are in it. – These amino acids come from the proteins that we eat, then are broken down to be used by the body. ...
DNA - Cloudfront.net
... SU: Base-Pairing • Which base sequence in DNA is complementary to the base sequence TATCGG –A. ATAGCC –B. UCUATT –C. GCGUTT –D. ATACAA –Hint: Use Chargaff’s Rule ...
... SU: Base-Pairing • Which base sequence in DNA is complementary to the base sequence TATCGG –A. ATAGCC –B. UCUATT –C. GCGUTT –D. ATACAA –Hint: Use Chargaff’s Rule ...
Unit 13: Review Biotechnology Lab
... DNA is a helical, double-stranded molecule. Helicases are enzymes that will unwind the double helix, preparing it for the next stage. ...
... DNA is a helical, double-stranded molecule. Helicases are enzymes that will unwind the double helix, preparing it for the next stage. ...
Chapter 16
... 1. THE BASIC PRINCIPLE: BASE PAIRING TO A TEMPLATE STRAND. A process called replication can precisely copy DNA. The essential features of DNA replication are universal but there are some differences between prokaryotes and eukaryotes due to the difference in DNA organization. In prokaryotes, DNA con ...
... 1. THE BASIC PRINCIPLE: BASE PAIRING TO A TEMPLATE STRAND. A process called replication can precisely copy DNA. The essential features of DNA replication are universal but there are some differences between prokaryotes and eukaryotes due to the difference in DNA organization. In prokaryotes, DNA con ...
Document
... The process can be broken down into three steps. Step 1: Before replication can begin, the double helix must unwind. This is accomplished by enzymes called DNA helicases, which open up the double helix by breaking the hydrogen bonds that link the complementary nitrogenous bases. Once the two strands ...
... The process can be broken down into three steps. Step 1: Before replication can begin, the double helix must unwind. This is accomplished by enzymes called DNA helicases, which open up the double helix by breaking the hydrogen bonds that link the complementary nitrogenous bases. Once the two strands ...
File
... 11.) What two cell processes require chromosomes to replicate? _______________ & ________________ • Open your DNA model along the point of attachment between base pairs (rungs) and separate the two ...
... 11.) What two cell processes require chromosomes to replicate? _______________ & ________________ • Open your DNA model along the point of attachment between base pairs (rungs) and separate the two ...
DNA Replication
... mismatched pairs. It snips the error and replaces it with the correct nucleotide. ...
... mismatched pairs. It snips the error and replaces it with the correct nucleotide. ...
Notes - The University of Sydney
... Another Dale bedtime story. It all started with DNA polymerase I. This enzyme was first discovered by Arthur Kornberg in 1956 (the enzyme’s isolation is celebrating 50 years this year). There had been a search for the enzymes responsible for DNA synthesis since the structure of DNA had been solved ( ...
... Another Dale bedtime story. It all started with DNA polymerase I. This enzyme was first discovered by Arthur Kornberg in 1956 (the enzyme’s isolation is celebrating 50 years this year). There had been a search for the enzymes responsible for DNA synthesis since the structure of DNA had been solved ( ...
Biology_1_&_2_files/6 DNA and RNA ACADEMIC
... In prokaryotic cells, replication starts at a single site. In eukaryotic cells, replication starts at many sites along the chromosome. ...
... In prokaryotic cells, replication starts at a single site. In eukaryotic cells, replication starts at many sites along the chromosome. ...
Deoxyribonucleic acid, DNA
... Oswald Avery repeated Griffith’s work to determine which molecule was most important for transformation. Avery and his colleagues made an extract from the heatkilled bacteria that they treated with enzymes. The enzymes destroyed proteins, lipids, carbohydrates, and other molecules, including the nuc ...
... Oswald Avery repeated Griffith’s work to determine which molecule was most important for transformation. Avery and his colleagues made an extract from the heatkilled bacteria that they treated with enzymes. The enzymes destroyed proteins, lipids, carbohydrates, and other molecules, including the nuc ...
Eukaryotic DNA replication
Eukaryotic DNA replication is a conserved mechanism that restricts DNA replication to only once per cell cycle. Eukaryotic DNA replication of chromosomal DNA is central for the duplication of a cell and is necessary for the maintenance of the eukaryotic genome.DNA replication is the action of DNA polymerases synthesizing a DNA strand complementary to the original template strand. To synthesize DNA, the double-stranded DNA is unwound by DNA helicases ahead of polymerases, forming a replication fork containing two single-stranded templates. Replication processes permit the copying of a single DNA double helix into two DNA helices, which are divided into the daughter cells at mitosis. The major enzymatic functions carried out at the replication fork are well conserved from prokaryotes to eukaryotes, but the replication machinery in eukaryotic DNA replication is a much larger complex, coordinating many proteins at the site of replication, forming the replisome.The replisome is responsible for copying the entirety of genomic DNA in each proliferative cell. This process allows for the high-fidelity passage of hereditary/genetic information from parental cell to daughter cell and is thus essential to all organisms. Much of the cell cycle is built around ensuring that DNA replication occurs without errors.In G1 phase of the cell cycle, many of the DNA replication regulatory processes are initiated. In eukaryotes, the vast majority of DNA synthesis occurs during S phase of the cell cycle, and the entire genome must be unwound and duplicated to form two daughter copies. During G2, any damaged DNA or replication errors are corrected. Finally, one copy of the genomes is segregated to each daughter cell at mitosis or M phase. These daughter copies each contain one strand from the parental duplex DNA and one nascent antiparallel strand.This mechanism is conserved from prokaryotes to eukaryotes and is known as semiconservative DNA replication. The process of semiconservative replication for the site of DNA replication is a fork-like DNA structure, the replication fork, where the DNA helix is open, or unwound, exposing unpaired DNA nucleotides for recognition and base pairing for the incorporationof free nucleotides into double-stranded DNA.