PPT-Types of mutations Point mutations

Conditional mutations Point mutations In point mutations the sequence of the DNA has been altered at a single position Where this change consists of replacing one nucleotide by another it is known as a . What Are Mutations?. Mutation: . Changes . in the nucleotide sequence of . DNA. Mutagen: . A physical or chemical agent that changes DNA. Mutation May . occur . in:. somatic cells (body cells): . will not be . 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:. 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 . 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.. 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. MISTAKES IN DNA. A MISTAKE CAN BE:. 1. A point mutation – substitution, addition, or removal of a single DNA base.. 2. A . frameshift. mutation – . a point mutation due to an addition . or deletion of a DNA base that causes a major change in the genetic code.. Science. Learning intention. To understand the different types of mutations. . You will need. A pen and a piece of paper or a laptop to record your answers. . You may need the internet to search for answers. . 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. 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 .