PPT-Chromosomal Gene Mutations

What if its NOT just the number Gene Mutations Damaged Chromosomes sometimes a portion of a gene or chromosome is lost or damaged during meiosis Gene mutation a mutation that affects the gene. Types . of Mutations | . Effects . of . Mutations. Learning Objectives. Identify different changes to DNA within both genes and chromosomes. Evaluate effects of changes to DNA on proteins produced and organisms’ overall survival. Mutations. Hollywood’s images of . mutation. Mutations. Actual Mutations . in fruit flies. What is a mutation?. A mutation is any change in a cell’s DNA. A mutation can occur in an individual gene. Bases:. A, T, C, G. Codons:. Genes:. Chromosome:. DNA. Words. Chapters. Book. Not passed on to offspring. Can be passed on to offspring. M. ito. sis. M. eio. sis. Mutations. in Cell Division. A single gene. In humans, blue eyes are caused by a recessive allele found most frequently in northern European populations. But where did the . first. blue-eyed person come from?. All humans originated in Africa and had dark brown eyes (an adaptation to the strong equatorial sunlight).. 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 . Henry County Professional Learning High School Session II. Chromosomal Mutations. Deletion. – part of the chromosome is missing. Starts with breaks in the chromosome. Radiation, heat, viruses, chemicals, etc.. Karyotype. Human Chromosomes. Humans have . 46 . chromosomes arranged in . 23. pairs. Two . sex chromosomes. - determine an individual’s sex. Females . have two copies of the large X chromosome. Males have one X and a smaller Y chromosome. 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. . Point mutations. single base change . silent mutation. no amino acid change. redundancy in code. missense. change amino acid. Changes the final protien. nonsense. change to stop codon. Stopping prematurely . Given a mutation, identify its type. Predict how a mutation will affect a protein.. Mutations. Changes in genetic material (DNA). 2 main types of mutations. Point mutation- change in one or a few nucleotides (letters). The sequence of bases in DNA are like the letters of a coded message or even the letters of a simple alphabet. . If we change the sequence of the letters do we change the nature of the message?. That . Main idea: Gene expression is regulated by the cell, and mutations can affect this expression. Gene Regulation . Cells have the ability to control which genes are transcribed and when they are transcribed. KEY CONCEPT:. . Mutations. are changes in genetic material.. VOCABULARY:. Mutation, point mutation, . frameshift. mutation, polyploidy. Mutations – extension from gene expression. . Changes in genotype. mutation. Mutations. Ectrodactyly. Progeria. Hypertrichosis. Severe Combined Immunodeficiency Disorder (SCID). Sickle Cell Anemia. Heterochromia. iridium. What is a mutation?. @A . mutation is any change in a cell’s .