PPT-Gene Regulation and Mutations

Can the letters of any word be rearranged to form another word in English Give examples If you rearranged the letters at random is it likely that you would form another English word Explain your answer . Changes in . DNA. that affect genetic information. Gene Mutations. Point Mutations – changes . in one or a few. nucleotides. Substitution. THE FAT CAT ATE THE RAT. THE FAT HAT ATE THE RAT. Insertion. 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. or. How a perfectly good system can go wrong go wrong go wrong. There are 2 types of mutations. 1)Chromosomal rearrangements. . There are too many or too few chromosomes. (nondisjunction and polyploidy). 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:. Draw 8 boxes on your paper. Gene regulation accounts for some of the phenotypic differences between organisms with similar genes.. 2005-2006. Gene regulation in bacteria. Control of gene expression enables individual bacteria to adjust their metabolism to environmental change. 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 . Understand how they occur. Analyze the different types of mutations. Understand how mutations affect amino acid sequences and proteins. Objective. Central Dogma. DNA is transcribed into RNA, RNA is translated into proteins. Small-scale mutations. Missense mutations. Nonsense mutations. Silent mutations. Frameshift mutations. Large scale mutations. Causes. Mutagens. The results of mutation. Mutations. Genetic mutations are changes in the DNA sequence, caused by various mechanisms.. The types of proteins an organism possesses depend upon the . sequence of nucleotides. The two main types of gene mutations include:. Point mutation: one base pair is replaced for another base pair.. permanent change . in the DNA sequence of a gene. .. . Mutations . in a . gene's DNA sequence. can alter . the amino acid sequence . of the . protein. encoded by the gene.. GOOD BAD NEUTRAL. 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. What if it’s 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. 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 .