'Mutagens' presentation slideshows

CHAPTER 10 Bacterial Genetics

CHAPTER 10 Bacterial Genetics. Mutation and Recombination, Mutations and Mutants. Mutation is a heritable change in DNA sequence that can lead to a change in phenotype . By definition, a mutant differs from its parental strain in genotype , the nucleotide sequence of the genome.

1.45k views • 92 slides

884 views • 71 slides

HAZARD COMMUNICATION

710 views • 45 slides

Variation 2

1. Variation 2. Sources of variation. Sources of heritable variation. 2. There are two principal ways in which heritable variations can be acquired. Independent assortment of genes. Mutation. Independent assortment of genes. 3. Independent assortment arises as a result of meiosis

677 views • 40 slides

Lecture 7

Lecture 7. Microbial Genetics: Genetic Mutations Gene Transfer. Genetic Mutations. Mutations: Changes in DNA. Why are mutations in DNA important to humans? 2 types of mutations: Spontaneous Mutations :

479 views • 33 slides

Mutations and DNA Technology

Mutations and DNA Technology. What is a mutation?. A mutation is a change in DNA Two types of mutations are gene mutations and chromosome mutations. Gene mutations. A POINT MUTATION is a mutation that affects one nucleotide or one base. Sometimes your cell catches it when proofreading.

471 views • 31 slides

AP Environmental Science Mr. Grant Lesson 84

AP Environmental Science Mr. Grant Lesson 84. Toxic Substances in the Environment. Objectives:. Define the terms bioaccumulation and biomagnification . Describe the types, abundance, distribution, and movement of synthetic and natural toxicants in the environment.

418 views • 18 slides

M utations

M utations. Variations which do not resemble either parent and have not occurred in family history. Do not have any known cause. Not necessarily harmful. Mutant : An organism which possesses a mutation

203 views • 8 slides

Risk, human health and hazardous waste

168 views • 6 slides

Agents that cause mutations are known as mutagens. Radiation Viruses Transposons

Mutagens. Agents that cause mutations are known as mutagens. Radiation Viruses Transposons Mutagenic chemicals Errors may also occur during meiosis or DNA replication. They can also be induced by the organism itself, by cellular processes such as hypermutation.

273 views • 4 slides