Genetic Mutations What is a Genetic Mutation A

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Genetic Mutations

Genetic Mutations

What is a Genetic Mutation? A mutation is a change in the genetic material

What is a Genetic Mutation? A mutation is a change in the genetic material (DNA) of a cell. l Mutations may occur in any cell of the body and may be the result of one or several unpredictable factors. l

What is a Genetic Mutation cont’d l l If the mutations affect the reproductive

What is a Genetic Mutation cont’d l l If the mutations affect the reproductive cells, they can be passed from one generation to the next Mutations that affect other cells of the body are not inheritable.

Environmental Factors l l Some mutations are caused by environmental factors: 1) Overexposure to

Environmental Factors l l Some mutations are caused by environmental factors: 1) Overexposure to sunlight 2) Pollutions 3) Pesticides

DDT and Bald Eagles

DDT and Bald Eagles

Lifestyle Factors l If you live an unhealthy lifestyle by taking: • 1) Toxins

Lifestyle Factors l If you live an unhealthy lifestyle by taking: • 1) Toxins (alcohol, drugs, etc) • 2) Carcinogens (smoking, etc) • 3) Food additives • These can cause mutations in a person or in a developing fetus.

PHENYLKETONURIA (or PKU) l l Causes mental deficiency Effects can be lessened by changing

PHENYLKETONURIA (or PKU) l l Causes mental deficiency Effects can be lessened by changing the diet of the individual with the mutation.

Types of Mutations l l l Many cancers are caused by such mutations. Not

Types of Mutations l l l Many cancers are caused by such mutations. Not all mutations are harmful. Many have no effect, or cause slight, harmless changes An organism may not appear mutant at all (in other words, though it’s genotype is mutant, its phenotype is normal)

Types of Mutations l l Occasionally, mutations arise that are beneficial to organisms For

Types of Mutations l l Occasionally, mutations arise that are beneficial to organisms For example, some bacteria may have developed resistance to antibiotics in this manner

How mutations occur? l l l l l fetal exposure to alcohol overexposure to

How mutations occur? l l l l l fetal exposure to alcohol overexposure to sunlight radiation carcinogens food additives hormone mimics pollution pesticides Non prescription drugs German measles or other infectious diseases

MUTATION SPONTANEOUS MUTATIONS INDUCED MUTATIONS MUTATIONS Mutations areMUTATION SPONTANEOUS MUTATIONS INDUCED MUTATIONS MUTATIONS Mutations are
Mutations Mutations Hollywoods images of mutation Mutations ActualMutations Mutations Hollywoods images of mutation Mutations Actual
Mutations Hollywoods images of mutation Mutations Actual MutationsMutations Hollywoods images of mutation Mutations Actual Mutations
Mutations Mutations overview Smallscale mutations Missense mutations NonsenseMutations Mutations overview Smallscale mutations Missense mutations Nonsense
Mutations Mutations Types of Mutations Point Mutations occursMutations Mutations Types of Mutations Point Mutations occurs
Mutations Mutation damage to genetic material A mutationMutations Mutation damage to genetic material A mutation
Gene Mutations Mutation Mutation changes in the geneticGene Mutations Mutation Mutation changes in the genetic
Human Genetic Mutations What is a mutation MutationsHuman Genetic Mutations What is a mutation Mutations
DNA Mutations Technology What are genetic mutations MutationDNA Mutations Technology What are genetic mutations Mutation
GENETIC MUTATIONS Exploring point mutations and chromosomal mutationsGENETIC MUTATIONS Exploring point mutations and chromosomal mutations
Mutations and Genetic Engineering Mutations Types of mutationsMutations and Genetic Engineering Mutations Types of mutations
Genetic Mutations Mutations New inherited traits or mutationsGenetic Mutations Mutations New inherited traits or mutations
Mutations Mutations Mutations are changes in the geneticMutations Mutations Mutations are changes in the genetic
DNA MUTATIONS Advanced Biology MUTATIONS Genetic mutations occurDNA MUTATIONS Advanced Biology MUTATIONS Genetic mutations occur