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. Mutations are changes in the genetic material. . Mutations may be genetic mutations or chromosomal mutations.. Genetic Mutations occur in the “code” on DNA or mRNA. Mistakes in . copying the DNA :. and Causes. What kinds of mutations can occur?. Mutations:. Mutations: are changes in the genetic material.. Mutations can produce changes in a single nucleotide to a whole chromosome. . Gene Mutations:. 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 . 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. 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 . Asst. Prof. Dr. . Dalya. Basil Hanna . In this lecture…... Mutation:. Gene (point) Mutation. Chromosomal Mutation. Gene Mutation . A gene mutation occurs when the nucleotide sequence of the DNA is altered and a new sequence is passed on to the offspring. The change may be either a substitution of one or a few nucleotides for others or an insertion or deletion of one or a few pairs of nucleotides. Typically occur during meiosis (gamete formation) but can also occur during mitosis. Can lead to cancer some cases. We will look at: Translocation, Deletion, Duplication and Inversion. Few harmful gene mutations are passed on to the next generation because the zygote usually dies. If it lives, the offspring may have birth defects.. Author. Ann Brokaw. Rocky River High School. Ohio. About This Activity…. These slides provide examples of different mutations and their effects on the organism and populations.. Answer the questions on the student handout when prompted.. There are two basic types of mutations:. Gene mutations - mutations that produce changes in a single gene. Chromosomal mutations - mutations that produce changes in whole chromosomes. Gene mutations . 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. - results in a single changed protein. 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 .