12:18# א[Template] SAS46PART 5: Mutations Background InformationMutations are changes in the DNA of an organism. These mutations can be harmful, helpful or neutral(not having any impact on the organism at all.) There are three types of mutations-insertion, deletion andsubstitution.Substitution mutations occur when a single base pair is substituted for the correct base. For example, if asection of DNA is ATTCG, the mutated strand could be ATTGG.Insertion mutations occur when one or more base pairs is added (inserted) to a DNA sequence. Forexample, if a section of DNA is ATTCG, the mutated strand could be ATATCG.Deletion mutations occur when one or more base pairs are omitted from a DNA sequence. For example,if a section of DNA is ATTCG, the mutated strand could be ATCG.Mutations can happen for several reasons.A. DNA fails to copy accurately. Most of the mutations that we think of are "naturally-occurring." Forexample, when a cell divides, it makes a copy of its DNA – and sometimes the copy is not quiteperfect. That small difference from the original DNA sequence is a mutation.B. Mutations can be caused by environmental factors such as Ultraviolet Radiation (UV), X-rays andsmoking tobacco. Examples of diseases caused by environmental factors resulting in mutationswould be skin and lung cancer.C. A mutation can be inherited if it exists in a sperm or egg cell. Examples of common inheritedmutations cause Cystic Fibrosis, Huntington's and Hemophilia.19. Summarize what you learned from the reading to answer the question- What causes mutations?II

Name: 12:18# א[Template] SAS46PART 5: Mutations Background InformationMutat
Uploaded: 2024-03-20T06:42:41.000Z
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Description: 12:18# א[Template] SAS46PART 5: Mutations Background InformationMutations are changes in the DNA of an organism. These mutations can be harmful, helpful or neutral(not having any impact on the organism at all.) There are three types of mutations-ins