PPT-What is a mutation??? GENETIC MUTATIONS

MISTAKES IN DNA A MISTAKE CAN BE 1 A point mutation substitution addition or removal of a single DNA base 2 A frameshift mutation a point mutation due to an addition or deletion of a DNA base that causes a major change in the genetic code. MUTATION. The genetic substrate for natural selection. AND the . Raw Material. for Evolution. Dr. Carol E. Lee, University of Wisconsin. (1). . Reduction of Variation: . Genetic . Drift . . . Inbreeding . Mutation. Permanent change in the genetic material of an organism. All mutations in gametes are inheritable because they are copied during DNA replication. Somatic cell mutations occur in body cells. Human chromosomes. Most cells in your body normally contain 46 chromosomes, organized into 23 pairs. In each of these 23 pairs, you've inherited one chromosome from your father and one from your mother. . MIZZZ FOSTER © 2015. Quick review of Genes and Proteins. Genes. are a sequence . of DNA nucleotides which . code . (codons) for the building of a polypeptide chain at the ribosome which will be folded into a protein inside the rough endoplasmic reticulum. Nobody’s perfect all the time . About 1/10 billion base pairs end up with a error or mutation . Mutation: Mistake in DNA replication or an environmental effect that . results. in a change to the nitrogenous bases in DNA or RNA. . http://io9.gizmodo.com/10-unusual-genetic-mutations-in-humans-470843733. Unharmful. Mutations. Mila . Kunis. has complete . heterochromia. . Kate Bosworth has . sectoral. . heterochromia. . Angelina Jolie has central . Nobody’s perfect all the time . About 1/10 billion base pairs end up with a error or mutation . Mutation: Mistake in DNA replication or an environmental effect that . results. in a change to the nitrogenous bases in DNA or RNA. . M. istakes made in the DNA sequencing. They can have a range of effects.. They can affect the genetic information that is passed to offspring.. Cells have evolved various methods to deal with them. . Unit 8: Protein Synthesis . 6A: Identify components of DNA, identify how information for specifying the traits of an organism is carried in the DNA, and examine scientific explanations for the origin of DNA.. (Chapter 12). Presented by Dr. Laurie M. Erickson. Chair of the Department of Health Sciences. Blitstein Institute of Hebrew Theological College. Chicago, IL, USA.. 12.1-12.2 Mutations . Mutation:. any heritable change in the genetic material. Mutations. and . polymorphisms. Genetics. and . genomics. ED . 01. . March. . 20. 19.. 2. Geneti. c . variability. I. ncreased. . by . - . S. exual. . reproduction . meiosis (generation of gametes. Is a natural process that changes a DNA sequence.. Mutant or Mutation – to describe something undesirable or broken.. Rarely cause death or disease. Generates new variations that can give an individual a survival advantage.. If the enzyme that converts tyrosine to melanin is defective, no melanin is produced and a genetic disease known as albinism results.. A peacock with albinism does not produce the melanin needed to make the bright colors of its feathers.. Learning Goal . Identify the type of change in DNA for a point mutation, a deletion mutation, and an insertion mutation. . Genetic Mutation. A. . mutation. is a change in the nucleotide sequence of DNA..