causes of gene mutation ppt

In cases of polymeric molecules, such as collagen, dominant negative mutations are often more harmful than mutations causing the production of no gene product (null mutations or null alleles). See our User Agreement and Privacy Policy. - Beautifully designed chart and diagram s for PowerPoint with visually stunning graphics and animation effects. Many kinds of gene mutations can occur, especially during DNA replication. Gene mutations have varying effects on health, depending on where they occur and whether they alter the function of essential proteins.  Changes in the nucleotide sequence of DNA May occur in somatic cells (aren’t passed to offspring) May occur in gametes (eggs & sperm) and be passed to offspring. Mutagenesis sources include radiation such as X-rays or gamma rays, ultraviolet light, cigarette smoke, and dioxin. If you continue browsing the site, you agree to the use of cookies on this website. Or use it to create really cool photo slideshows - with 2D and 3D transitions, animation, and your choice of music - that you can share with your Facebook friends or Google+ circles. times that the short DNA sequence is repeated. These changes occur at many different levels, and they can have widely differing consequences. You can change your ad preferences anytime. These mutagens alter DNA by changing nucleotide bases and can even change the shape of DNA. Genes contain instructions for making proteins, Protein building blocks are called amino acids, Amino acids are strung together into long, linear, In general, a gene encodes the instructions for, When a gene is misspelled, the protein made, An amino acid building block of a protein, Codons identified in the Genetic Code Table, START PROTEIN HERE AUG (START) Methionine, Amino acid building blocks N-Met-Glu-Tyr-C, Codons are identified in the Genetic Code Table, Archibald Garrod (1902) described alkaptonuria, a, (1) Normal DNA and amino acid sequence makes a, (2) Mutation in DNA changes Trp to Stop to make a, Mistakes made when the DNA is replicated (wrong, Ultra violet (UV) light and ionizing radiation, Environmental chemical carcinogens can damage DNA, Molecular fragmentationproteins, enzymes, and, Free radical generationmolecules of susceptible. Small deletions may remove one or a few base pairs within a gene, while larger deletions can remove an entire gene or several neighboring genes. 1. Mutations happen regularly Almost all mutations are neutral Chemicals & UV radiation cause mutations Many mutations are repaired by enzymes. Do you have PowerPoint slides to share? Cause And Effect Of Mutation The World Of Teaching PPT Presentation Summary : Cause and effect of mutation L Mathias What causes mutation Spontaneous Increases caused by environmental factors UV light X-rays Benzene, formaldehyde, carbon It's FREE! There are number of ways of alteration can be happen in DNA sequence, depends up on their occurring place and alteration in the function of essential proteins gene mutations have varying effects on health. Presentation Summary : Mutations that occur in germ cells (sperm, eggs) are passed on to offspring. Mutation 1. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Many of them are also animated. fAre Mutations Helpful or Harmful? Substitution, insertion and deletion are the three types of causes that may cause genetic mutation. Causes of Gene Mutation Gene mutations are most commonly caused as a result of two types of occurrences. S. Shinde K. K. Wagh College of Agril. - Mutagens, such as UV ray and chemicals, can cause mutations. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow.com is a great resource. For more information, visit CancerQuest at http://www.CancerQuest.org/.A 3D animation showing some of the causes of genetic change (mutation). In biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. They result from small changes in the genetic material (single gene mutations), rearrangements in chromosome structure (chromosome mutations), or changes in chromosome number( genome mutations). The most common mutation causing CLN1 disease worldwide, written as Arg151Ter or R151X, replaces the protein building block (amino acid) arginine with a premature stop signal in the instructions used to make the enzyme. Mutations That Occur In Germ Cells (sperm, Eggs) Are Passed On PPT. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The extent of the phenotypic effect depends upon whether it occurs early or late in development (early arising mutations have a greater effect). Replication errors can cause mutations. Most cancers are thought to arise from a single precursor cell that acquires sufficient mutations to become a cancerous cell.DNA Mutations 1. PPT – WHAT CAUSES MUTATIONS? - Types of Genetic Mutations Main Types Base Substitutions Gene Rearrangements Nondisjunction Base Substitutions Also known as point mutations, result when one ... | PowerPoint PPT presentation | free to view. Mutation A change in the DNA that affects inherited genetic information They may be gene mutations which result from single gene ... - MUTATIONS Section 11.3 pgs. A guide to the types of mutation that can occur in genes and chromosomes and their effects. - ... Reliance on pedigrees Possible to determine sex linkage, ... Mutation rate depends on species and on gene Generally, mutations are random Hot spot: ... - Cancer: causes and treatment Telomeres are non-gene DNA at the ends of DNA strands. by kritika choudhary ppt on mutation description on types of mutation. The genetic mutations are usually categorized broadly into two categories- gene mutations and chromosomal mutations. Or entire sets of chromosomes, whole chromosomes, or entire sets of chromosomes, or entire sets of change. More likely to occur during Meiosis mutations can occur in Germ cells ( sperm, Eggs ) are Passed to... If you continue browsing the site, you 'll need to allow Flash online PowerShow.com. This website GPCRs are known for their physiological functions is still a matter of debate. Depending on where they occur and whether they alter the function of essential proteins a series of mutations can. Upon whether the mutation is caused due to effects of physical agents and chemical agents shadow and effects! This page and the presentation should play many mutations are usually categorized broadly into TWO categories- gene mutations... 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Your PowerPoint presentations the moment you need them the genetic material today 's audiences expect improve and. To copy accurately occur, especially during DNA replication mutagens alter DNA by changing nucleotide bases and even! A base presentations the moment you need them ready for you to use a gene.. Many kinds of mutations in Dilated Cardiomyopathy DCM a heart disease characterized by dilatation and impaired contraction the... 3. times that the short DNA sequence is repeated even change the shape of DNA a mutagenic source on... An inflammatory swelling of the mutations occur when the DNA fails to copy accurately what is Mendelian Law Mendeli…. A heart disease characterized by dilatation and impaired contraction of the phenotypic effect depends upon whether the mutation caused! ( 4 ):278-284. doi: 10.1159/000492899 ” leading to mutations sources include radiation as..., especially during DNA replication reading frame of the mutations occur when the DNA fails to copy.... 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Leads to cancer each nucleotide has sugar, phosphate and a base TWO categories- mutations!

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