PowerPoint Presentation - Knockout gene affects parental care
... Ben-Shahar, Y., A. Robichon, M.B. Sokolowski, and G.E. Robinson 2002 Influence of gene action across different time scales on behavior. Science 296:741-744. Ben-Shahar, Y., H. T. Leung, W. L. Pak, M. B. Sokolowski, and G. E. Robinson. 2003. cGMP-dependent changes in phototaxis: a possible role for t ...
... Ben-Shahar, Y., A. Robichon, M.B. Sokolowski, and G.E. Robinson 2002 Influence of gene action across different time scales on behavior. Science 296:741-744. Ben-Shahar, Y., H. T. Leung, W. L. Pak, M. B. Sokolowski, and G. E. Robinson. 2003. cGMP-dependent changes in phototaxis: a possible role for t ...
Mutations
... Single nucleotide SUBSTITUTION = base exchange – (transition = purine (A,G) for purine, pyrimidine (C,T) for pyrimidine or transversion = purine for pyrimidine or vice versa) e.g. base alkylation, oxidation, deamination leads to change of pairing properties and change of nucleotide during replicatio ...
... Single nucleotide SUBSTITUTION = base exchange – (transition = purine (A,G) for purine, pyrimidine (C,T) for pyrimidine or transversion = purine for pyrimidine or vice versa) e.g. base alkylation, oxidation, deamination leads to change of pairing properties and change of nucleotide during replicatio ...
President Clinton Comes to Cal (Jan. 29, 2002)
... as "a personality thing." Then he heard that scientists at the Fred Hutchinson Cancer Research Center in Seattle had linked risk-taking behavior in mice to a gene. Those without it pranced unprotected along a steel beam instead of huddling in safety like the other mice. Now Mr. Dallas, a chef in Sea ...
... as "a personality thing." Then he heard that scientists at the Fred Hutchinson Cancer Research Center in Seattle had linked risk-taking behavior in mice to a gene. Those without it pranced unprotected along a steel beam instead of huddling in safety like the other mice. Now Mr. Dallas, a chef in Sea ...
Biotechnology
... Molecular genetics- study of genes and how they are expressed Chromosome- part of cell nucleus that contains heredity information and promotes protein synthesis Gene- basic unit of heredity on a chromosome DNA- molecule in a chromosome that codes genetic information ...
... Molecular genetics- study of genes and how they are expressed Chromosome- part of cell nucleus that contains heredity information and promotes protein synthesis Gene- basic unit of heredity on a chromosome DNA- molecule in a chromosome that codes genetic information ...
Biology Concepts to Study
... CYTOLOGY: THE STUDY OF CELLS I. CELL THEORY: All living things are composed of cells - cells are the basic unit of structure and function - all cells come from preexisting cells. A. CELL SIZE: small to maximize surface area to volume ratio (SA/V) for regulating internal cell environment. As a cell's ...
... CYTOLOGY: THE STUDY OF CELLS I. CELL THEORY: All living things are composed of cells - cells are the basic unit of structure and function - all cells come from preexisting cells. A. CELL SIZE: small to maximize surface area to volume ratio (SA/V) for regulating internal cell environment. As a cell's ...
Lecture#3 Genes encode Proteins Readings: Problems: Concepts
... 3. the block can be circumvented by adding the compound that comes after the block Note: the entire model was inferred from the properties of the mutants (phenotype) - later the presence of defective enzymes was demonstrated by independent biochemical analysis History - first insight into the functi ...
... 3. the block can be circumvented by adding the compound that comes after the block Note: the entire model was inferred from the properties of the mutants (phenotype) - later the presence of defective enzymes was demonstrated by independent biochemical analysis History - first insight into the functi ...
Chapter 8 Bacterial Genetics
... Enormous amount of spontaneous and mutageninduced damage to DNA • If not repaired, can lead to cell death; cancer in animals • For example, in humans, two genes associated with breast cancer code for DNA repair enzymes; mutations in either result in 80% probability of breast cancer ...
... Enormous amount of spontaneous and mutageninduced damage to DNA • If not repaired, can lead to cell death; cancer in animals • For example, in humans, two genes associated with breast cancer code for DNA repair enzymes; mutations in either result in 80% probability of breast cancer ...
chapter 8
... Bacteria can transfer genes from one strain to another by three different mechanisms ...
... Bacteria can transfer genes from one strain to another by three different mechanisms ...
Sem 2 Bio Review Questions
... A. It is only a coincidence; many other organisms have an odd number of chromosomes. B. The diploid chromosome number is always even so that when mitosis occurs each new cell gets the same number of chromosomes. C. The diploid chromosome number represents pairs of chromosomes, one from each parent, ...
... A. It is only a coincidence; many other organisms have an odd number of chromosomes. B. The diploid chromosome number is always even so that when mitosis occurs each new cell gets the same number of chromosomes. C. The diploid chromosome number represents pairs of chromosomes, one from each parent, ...
DISRUPTING GENETIC EQUILIBRIUM
... Gene Pool = the total genetic information stored in a population Adapting to new selection factors can only use existing genes found in the population Allele Frequency = the number of a certain allele in the population / the total number of all alleles The phenotype frequencies can change between ge ...
... Gene Pool = the total genetic information stored in a population Adapting to new selection factors can only use existing genes found in the population Allele Frequency = the number of a certain allele in the population / the total number of all alleles The phenotype frequencies can change between ge ...
CAPT Biology Concepts Study Sheet
... CYTOLOGY: THE STUDY OF CELLS I. CELL THEORY: All living things are composed of cells - cells are the basic unit of structure and function - all cells come from preexisting cells. A. CELL SIZE: small to maximize surface area to volume ratio (SA/V) for regulating internal cell environment. As a cell's ...
... CYTOLOGY: THE STUDY OF CELLS I. CELL THEORY: All living things are composed of cells - cells are the basic unit of structure and function - all cells come from preexisting cells. A. CELL SIZE: small to maximize surface area to volume ratio (SA/V) for regulating internal cell environment. As a cell's ...
The Unseen Genome: Beyond DNA
... In recent years, geneticists have been exploring the less visible parts of the genome more thoroughly, in search of explanations for anomalies that contradict the central dogma: illnesses that run in families but pop up unpredictably, even differing among identical twins; genes that switch on or off ...
... In recent years, geneticists have been exploring the less visible parts of the genome more thoroughly, in search of explanations for anomalies that contradict the central dogma: illnesses that run in families but pop up unpredictably, even differing among identical twins; genes that switch on or off ...
DNA, RNA, & Protein Synthesis
... – Every 3 bases codes for a particular amino acid – Look up the codon on page 303 of textbook to find amino acid • Amino acid sequence determines the type of protein ...
... – Every 3 bases codes for a particular amino acid – Look up the codon on page 303 of textbook to find amino acid • Amino acid sequence determines the type of protein ...
The Chromosomal Basis of Inheritance
... offspring Autosomal Recessive Genes – body cells, not passed on to offspring X-linked recessive Genes – sex cells, passed on to offspring Y-linked – only in males Chromosomal Abnormalities – if affects sex chromosomes, passed on to offspring Multifactorial – genetic component (gene or chro ...
... offspring Autosomal Recessive Genes – body cells, not passed on to offspring X-linked recessive Genes – sex cells, passed on to offspring Y-linked – only in males Chromosomal Abnormalities – if affects sex chromosomes, passed on to offspring Multifactorial – genetic component (gene or chro ...
Protein Synthesis (B7)
... RNA Structure: •polymer of nucleotides •Ribose sugar unit •single stranded ...
... RNA Structure: •polymer of nucleotides •Ribose sugar unit •single stranded ...
Genetic Disorders and Gene Therapy
... affect mammals (including humans), fish, birds, reptiles and amphibians. Characterized by a partial or total lack of _______________________ in the eyes, skin and hair (or more rarely the eyes alone). About 1 in 17,000 human beings has some type of albinism, although up to 1 in 70 is a carrier o ...
... affect mammals (including humans), fish, birds, reptiles and amphibians. Characterized by a partial or total lack of _______________________ in the eyes, skin and hair (or more rarely the eyes alone). About 1 in 17,000 human beings has some type of albinism, although up to 1 in 70 is a carrier o ...
slides - István Albert
... • An allele is one of two or more forms of a gene or a gene9c locus • Both alleles are the same à homozygotes. • If the alleles are different àheterozygotes. ...
... • An allele is one of two or more forms of a gene or a gene9c locus • Both alleles are the same à homozygotes. • If the alleles are different àheterozygotes. ...
Gene Mapping
... • The recombination frequency between two genes indicates how much recombination is actually observed in a particular experiment; it is a measure of recombination • Over an interval so short that multiple crossovers are precluded (~ 10 percent recombination or less), the map distance equals the reco ...
... • The recombination frequency between two genes indicates how much recombination is actually observed in a particular experiment; it is a measure of recombination • Over an interval so short that multiple crossovers are precluded (~ 10 percent recombination or less), the map distance equals the reco ...
Ch 18
... • DNA methylationthe addition of methyl groups to certain bases in DNA, is associated with reduced transcription in some species • DNA methylation can cause long-term inactivation of genes in cellular differentiation – In genomic imprinting, methylation turns off either the maternal or paternal alle ...
... • DNA methylationthe addition of methyl groups to certain bases in DNA, is associated with reduced transcription in some species • DNA methylation can cause long-term inactivation of genes in cellular differentiation – In genomic imprinting, methylation turns off either the maternal or paternal alle ...
Biotechnology
... Compare and contrast biotechnology, recombinant DNA technology, and genetic engineering. Identify the roles of a clone and a vector in making recombined DNA. Compare selection and mutation. Define restriction enzymes, and outline their use to make recombinant DNA. List some properties of vectors and ...
... Compare and contrast biotechnology, recombinant DNA technology, and genetic engineering. Identify the roles of a clone and a vector in making recombined DNA. Compare selection and mutation. Define restriction enzymes, and outline their use to make recombinant DNA. List some properties of vectors and ...
Gene
A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.