Structure and function of DNA
... DNA is a double stranded molecule consists of 2 polynucleotide chains running in opposite directions. Both strands are complementary to each other. The bases are on the inside of the molecules and the 2 chains are joined together by double H-bond between A and T and triple H-bond between C and G. Th ...
... DNA is a double stranded molecule consists of 2 polynucleotide chains running in opposite directions. Both strands are complementary to each other. The bases are on the inside of the molecules and the 2 chains are joined together by double H-bond between A and T and triple H-bond between C and G. Th ...
Genetics Pre/Post Test
... 31. What does co-dominance mean in genetics? a. Both alleles are dominant. b. Both alleles are recessive. c. The alleles are neither dominant nor recessive. d. Each allele is both dominant and recessive. 32. A mutation is harmful to an organism if it _____. a. changes the DNA of the organism b. chan ...
... 31. What does co-dominance mean in genetics? a. Both alleles are dominant. b. Both alleles are recessive. c. The alleles are neither dominant nor recessive. d. Each allele is both dominant and recessive. 32. A mutation is harmful to an organism if it _____. a. changes the DNA of the organism b. chan ...
Homework #2
... c) If trisomies and monsomies entailing chromosome 13 and 22 are letha, what proportion of the surviving offspring will be carriers of the translocation? ...
... c) If trisomies and monsomies entailing chromosome 13 and 22 are letha, what proportion of the surviving offspring will be carriers of the translocation? ...
Structure and function of DNA
... DNA is a double stranded molecule consists of 2 polynucleotide chains running in opposite directions. Both strands are complementary to each other. The bases are on the inside of the molecules and the 2 chains are joined together by double H-bond between A and T and triple H-bond between C and G. Th ...
... DNA is a double stranded molecule consists of 2 polynucleotide chains running in opposite directions. Both strands are complementary to each other. The bases are on the inside of the molecules and the 2 chains are joined together by double H-bond between A and T and triple H-bond between C and G. Th ...
here - IMSS Biology 2014
... Epigenomic Marks. The epigenome can mark DNA in t wo ways, both of which play a role in turning genes off or on. The first occurs when certain chemical tags called methyl groups attach to the backbone of a DNA molecule .The second occurs when a variety of chemical tags attach t o the tails of hist o ...
... Epigenomic Marks. The epigenome can mark DNA in t wo ways, both of which play a role in turning genes off or on. The first occurs when certain chemical tags called methyl groups attach to the backbone of a DNA molecule .The second occurs when a variety of chemical tags attach t o the tails of hist o ...
Semester 2 Final Review
... Unit 1: The Scientific Method 1. If a hypothesis is supported many times, it becomes a ___________. 2. Explain the difference between independent and dependent variables. 3. What is a scientific theory? Unit 2: Biochemistry 4. What is an enzyme? 5. How do enzymes function? 6. What conditions affect ...
... Unit 1: The Scientific Method 1. If a hypothesis is supported many times, it becomes a ___________. 2. Explain the difference between independent and dependent variables. 3. What is a scientific theory? Unit 2: Biochemistry 4. What is an enzyme? 5. How do enzymes function? 6. What conditions affect ...
Recombinant DNA key
... not lipids, usually trigger the immune response. Liposomes usually deliver plasmids or other DNA that won’t integrate into the genome. Shouldn’t be a problem. ...
... not lipids, usually trigger the immune response. Liposomes usually deliver plasmids or other DNA that won’t integrate into the genome. Shouldn’t be a problem. ...
Chapter 14 When Allele Frequencies Stay Constant
... 14.4 DNA Profiling is Based on Hardy-Weinberg Assumptions 1. Hardy-Weinberg equilibrium only applies when natural selection is not occurring. It applies to DNA repeats and other sequences that do not alter evolutionary fitness. 2. DNA repeats are found throughout the genome. 3. Copy number variants ...
... 14.4 DNA Profiling is Based on Hardy-Weinberg Assumptions 1. Hardy-Weinberg equilibrium only applies when natural selection is not occurring. It applies to DNA repeats and other sequences that do not alter evolutionary fitness. 2. DNA repeats are found throughout the genome. 3. Copy number variants ...
Human Genome
... DNA contains the genetic instructions for everything a particular cell does, and all living things contain DNA. It is possible to separate DNA from split peas and other vegetables. Have students conduct this experiment to see, feel, and smell DNA. 1. Measure 2/3 cup of dried split peas. Add about 1/ ...
... DNA contains the genetic instructions for everything a particular cell does, and all living things contain DNA. It is possible to separate DNA from split peas and other vegetables. Have students conduct this experiment to see, feel, and smell DNA. 1. Measure 2/3 cup of dried split peas. Add about 1/ ...
Differences between DNA and RNA • Ribonucleic acid is similar to
... The Three Types of RNA • Messenger RNA (mRNA) – carries DNA-encoded information into the cytosol, where it can be translated into proteins o Remember, the DNA can’t leave the nucleus, so it needs a messenger (mRNA) to deliver the code to the cytosol • Ribosomal RNA (rRNA) – combine with certain prot ...
... The Three Types of RNA • Messenger RNA (mRNA) – carries DNA-encoded information into the cytosol, where it can be translated into proteins o Remember, the DNA can’t leave the nucleus, so it needs a messenger (mRNA) to deliver the code to the cytosol • Ribosomal RNA (rRNA) – combine with certain prot ...
Classical and Modern Genetics
... • Fidelity in copying information • Specificity in information • Expression of gene via manufacturing of polypeptide leading to protein (e.g., enzyme) • Genetic Code is conserved in evolution – all organisms use the exact same coding process • Example of Genetic Code: laboratory exercise ...
... • Fidelity in copying information • Specificity in information • Expression of gene via manufacturing of polypeptide leading to protein (e.g., enzyme) • Genetic Code is conserved in evolution – all organisms use the exact same coding process • Example of Genetic Code: laboratory exercise ...
File - NCEA Level 3 Biology
... amino acids and the order they are arranged in. This is a universal code, so in theory the same protein can be made by any organism. – The promoter region – controls gene expression. Regulates in which tissue the gene should be expressed, at what time and in response to what stimulus the gene is ...
... amino acids and the order they are arranged in. This is a universal code, so in theory the same protein can be made by any organism. – The promoter region – controls gene expression. Regulates in which tissue the gene should be expressed, at what time and in response to what stimulus the gene is ...
Chap5 Genetic Engineering
... Multiple copies of genes can be introduced but there is a limit in the gene numbers because essential cellular resources (e.g. transcription factors) may become limiting. ...
... Multiple copies of genes can be introduced but there is a limit in the gene numbers because essential cellular resources (e.g. transcription factors) may become limiting. ...
SI Worksheet 11
... 7. A sequence of pictures of polypeptides synthesis shows a ribosome holding two transfer RNAs. One tRNA has a polypeptide chain attached to it, the other tRNA has a single amino acid attaches to it. What does the next picture show? a. the polypeptide chain moves over and bonds to the single amino a ...
... 7. A sequence of pictures of polypeptides synthesis shows a ribosome holding two transfer RNAs. One tRNA has a polypeptide chain attached to it, the other tRNA has a single amino acid attaches to it. What does the next picture show? a. the polypeptide chain moves over and bonds to the single amino a ...
The differences between Eukaryotes and
... Coupled with these factors the DNA polymerases that are found in eukaryotes work much slower NOT faster!! At the rate they work it would take 30 days to copy the human genome if it was left to 2 replication forks! The average E. coli replication fork works around the chromosome at a staggering 105 b ...
... Coupled with these factors the DNA polymerases that are found in eukaryotes work much slower NOT faster!! At the rate they work it would take 30 days to copy the human genome if it was left to 2 replication forks! The average E. coli replication fork works around the chromosome at a staggering 105 b ...
Unit 3 – Heredity Genetics and Evolution – Quiz 2 Name: :______ 1
... B. a recessive trait will show if one recessive gene is present C. a recessive trait will show if two recessive genes are present D. a recessive trait will show if one dominant gene is present 19. Which of the following statements is correct? A. a dominant trait will show if one or two dominant gene ...
... B. a recessive trait will show if one recessive gene is present C. a recessive trait will show if two recessive genes are present D. a recessive trait will show if one dominant gene is present 19. Which of the following statements is correct? A. a dominant trait will show if one or two dominant gene ...
Recombinant Paper Plasmids:
... enzymes, BamHI and HindIII. You will ligate together fragments that come from each plasmid, creating a pAMP/KAN plasmid. 1. First, simulate the activity of the restriction enzyme BamHI. Reading from 5’ to 3’ (left to right) along the top row of your pAMP plasmid, find the base sequence GGATCC. This ...
... enzymes, BamHI and HindIII. You will ligate together fragments that come from each plasmid, creating a pAMP/KAN plasmid. 1. First, simulate the activity of the restriction enzyme BamHI. Reading from 5’ to 3’ (left to right) along the top row of your pAMP plasmid, find the base sequence GGATCC. This ...
Sentence Splitting: DNA Fingerprinting
... Problem: How are DNA fingerprints made and interpreted? Procedure: Our traits are all coded for by genes, which comprise segments of DNA. DNA fingerprinting is a process which separates DNA into various gene segments, each of which is linked to our individual traits. In a process called electrophore ...
... Problem: How are DNA fingerprints made and interpreted? Procedure: Our traits are all coded for by genes, which comprise segments of DNA. DNA fingerprinting is a process which separates DNA into various gene segments, each of which is linked to our individual traits. In a process called electrophore ...
Lecture #9 Date
... can reproduce itself indefinitely and differentiate into specialized cells of one or more types ● Stem cells isolated from early embryos at the blastocyst stage are called embryonic stem (ES) cells; these are able to differentiate into all cell types ● The adult body also has stem cells, which repla ...
... can reproduce itself indefinitely and differentiate into specialized cells of one or more types ● Stem cells isolated from early embryos at the blastocyst stage are called embryonic stem (ES) cells; these are able to differentiate into all cell types ● The adult body also has stem cells, which repla ...
The structure of DNA
... DNA profiling takes advantage of the fact that no two people have the exact same DNA ...
... DNA profiling takes advantage of the fact that no two people have the exact same DNA ...
Issues in Biotechnology
... 19. The control of gene expression is critical to all living things. The amino acid tryptophan is important for making many proteins. When there is plenty of tryptophan in a cell a protein binds to the gene that codes for enzyme that will make tryptophan. When there is no tryptophan present this pr ...
... 19. The control of gene expression is critical to all living things. The amino acid tryptophan is important for making many proteins. When there is plenty of tryptophan in a cell a protein binds to the gene that codes for enzyme that will make tryptophan. When there is no tryptophan present this pr ...
Cre-Lox recombination
In the field of genetics, Cre-Lox recombination is known as a site-specific recombinase technology, and is widely used to carry out deletions, insertions, translocations and inversions at specific sites in the DNA of cells. It allows the DNA modification to be targeted to a specific cell type or be triggered by a specific external stimulus. It is implemented both in eukaryotic and prokaryotic systems.The system consists of a single enzyme, Cre recombinase, that recombines a pair of short target sequences called the Lox sequences. This system can be implemented without inserting any extra supporting proteins or sequences. The Cre enzyme and the original Lox site called the LoxP sequence are derived from bacteriophage P1.Placing Lox sequences appropriately allows genes to be activated, repressed, or exchanged for other genes. At a DNA level many types of manipulations can be carried out. The activity of the Cre enzyme can be controlled so that it is expressed in a particular cell type or triggered by an external stimulus like a chemical signal or a heat shock. These targeted DNA changes are useful in cell lineage tracing and when mutants are lethal if expressed globally.The Cre-Lox system is very similar in action and in usage to the FLP-FRT recombination system.