Objectives Know radiation and mutagenic chemicals increase the mutation rate and can cause genetic...
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What causes mutation?
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Transcript of Objectives Know radiation and mutagenic chemicals increase the mutation rate and can cause genetic...
What causes mutation?
What causes mutation?Objectives
Know radiation and mutagenic chemicals
increase the mutation rate and can cause genetic diseases and cancer.
Application: Consequences of radiation after nuclear
bombing of Hiroshima and the Chernobyl.
Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
What causes mutation?A mutagenic substance or mutagen is a physical or chemical agent with the potential to change DNA.
Examples include:
Radiation
Various chemicals
Viruses
Bacteria
Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
What causes mutation?What are the results of
mutation?Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
Cancers
Genetic disease
New characteristics
Eventual evolution?
Nothing!
What causes mutation?What are the results of
mutation?Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
Cancers
Genetic disease
New characteristics
Eventual evolution?
Nothing!
What causes mutation?In genetics, the mutation rate is a measure of the rate at which various types of mutations occur over time. Mutation rates are typically given for a specific class of mutation, for instance point mutations, small or large scale insertions or deletions.
Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
What causes mutation?Case studies
Hiroshima
Chernobyl
For each:WhatWhenWhereWhy
Short term consequencesLong term consequences
Outcomes
3: Describe causes and consequences of mutation.
5: Explain the effects of large doses of radiation such as in
Hiroshima and Chernobyl.
7: Evaluate the short and long term consequences of misuse of
nuclear radiation.
Key terms: radiation, mutagenic, cancer, genetic disease.
