Bell Ringer Objective: Explain that mutations occur during DNA replication or transcription and may be random or a result of environmental agents. Question:

Slides:



Advertisements
Similar presentations
Mutations. Definition mutation A mutation is a change in an organism’s DNA – Silent mutations are changes that do not result in a change to the organisms.
Advertisements

SC.912.L.16.4 Explain how mutations in the DNA sequence may or may not result in phenotypic change. Explain how mutations in gametes may result in.
A mutation is a change in an organism’s DNA.
Genes and mutations. What are genes? A molecular unit of heredity The name for stretches of DNA and RNA that code for a specific protein (which has a.
Mutations are changes in DNA that may or may not affect phenotype.
MUTATIONS Section 11.3 pgs
Section 11.3 MUTATIONS Section 11.3 pgs
Mutations Chapter 12.4.
Mutations Genetic Changes.
Genetic Mutations Increasing Genetic Diversity May 4, 2010.
MUTATIONS. Mutations are heritable changes in genetic information Only mutation in the GAMETES can be passed on from generation to generation There can.
8.7 Mutations A mutation is a change in an organism’s DNA. This may or may not affect phenotype.
Mutations. Mutation effects Reproductive Cells -mutation in DNA sequence of an egg or sperm cell -mutation is passed on to offspring - possible effects.
MUTATIONS. Mutant An organism expressing a mutated gene.
8.7 Mutations KEY CONCEPT Mutations are changes in DNA that may or may not affect phenotype.
Genetic Changes: Mutations Chapter I. MUTATION  ANY change in an organisms DNA sequence  Causes  Errors in replication  Transcription  Cell.
8.7 Mutations A mutation is a change in an organism’s DNA. May occur during replication. May affect a single gene, or an entire chromosome May or may not.
Mutations. What Are Mutations? Changes in the nucleotide sequence of DNA May occur in somatic cells (aren’t passed to offspring) May occur in gametes.
Mutations.
Mutations SBI3U Ms. Lefebvre
Mutations.
Mutations.
A mutation is a change in an organism’s DNA.
Mutations.
Mermaid Syndrome Video.
Mutations.
Mutations.
Copyright Pearson Prentice Hall
Bell Ringer: 11/21/17 Objective: Explain that mutations occur during DNA replication or transcription and may be random or a result of environmental agents.
MUTATIONS.
Mutations.
Mutations.
UNIT: DNA and RNA What is a mutation and how does it cause changes in organisms?  Mutations -changes in a single base pair in DNA=changes in the nucleotide.
11.3 Section Objectives – page 296
A mutation is a change in an organism’s DNA.
A mutation is a change in an organism’s DNA.
UNIT: DNA and RNA What is a mutation and how does it cause changes in organisms?  Mutations Alternative alleles (traits) of many genes result from changes.
Mutations.
Mutations.
Mutations.
A mutation is a change in an organism’s DNA.
A mutation is a change in an organism’s DNA.
Mutations.
A mutation is a change in an organism’s DNA.
Mutations.
Mutations.
Mutations Chapter 8.7.
MUTATIONS.
Mutations.
Mutations.
Mutations changes in genetic material (_____).
MUTATIONS.
A mutation is a change in an organism’s DNA.
A mutation is a change in an organism’s DNA.
Mutations Chapter 8.7
Mutations.
Mutations.
Objective: Explain the main types of mutations
Mutations.
Copyright Pearson Prentice Hall
A mutation is a change in an organism’s DNA.
11.3 Section Objectives – page 296
Mutations.
A mutation is a change in an organism’s DNA.
Mutations.
Mutations.
Mutations.
Mutations.
A mutation is a change in an organism’s DNA
Mutations: Changes in Genes
Presentation transcript:

Bell Ringer Objective: Explain that mutations occur during DNA replication or transcription and may be random or a result of environmental agents. Question: POD page 35

changes in the sequence of DNA Mutations changes in the sequence of DNA

Locations: Mutation in Reproductive Cells 1. Sperm and/or eggs 2. Passed to the next generation

Location: Somatic (Body) Cell Mutation 1. Any cell other than egg or sperm cells 2. May/may not cause problems for the individual with the mutation 3. All cells that come from the mutated cell will have the mutation → may cause cancer 4. Will NOT be passed onto their offspring

Mutation Type: Nitrogen Base Point Mutation – change in one nitrogen base Original DNA – TCGATTTGA Changed DNA – TCGATATGA

Example of Point Mutations https://www.dnalc.org/resources/3d/17-sickle-cell.html

Mutation Type: Nitrogen Base Frameshift Mutation – single nitrogen base is added or deleted; results in a shift in the codon reading frame Original DNA – TCGATTTGA Addition – TCGAGTTTGA Deletion – TCGTTTGA

https://www.youtube.com/watch?v=RzEpkBU-ITA

Silent Mutations

Mutation Type: Chromosomal Mutations Original Chromosome – ABCDEFGHIJ (letter = gene) Deletion → ABCEFGHIJ **One or more genes is/are deleted

Chromosomal Deletion

Wolf-Hirschhorn syndrome

Mutation Type: Chromosomal Mutations Original Chromosome – ABCDEFGHIJ Inversion → ABCFEDGHIJ ***Set of genes are flipped/inverted

Chromosomal Inversion

Mutation Type: Chromosomal Mutations Original Chromosome – ABCDEFGHIJ Insertion → ABCDCDEFGHIJ ***One or more genes are re-inserted & appear more than one time ***Inserted genes may come from any chromosome

Chromosomal Insertion

Mutation Type: Chromosomal Mutations Original Chromosome – ABCDEFGHIJ Translocation → ABCDHIJ & ABCDEFGHIJEFG **One or more genes are moved from one chromosome to another chromosome; they exchange places

Chromosomal Translocation

Possible Causes of Mutations A. X-rays/exposure to radioactivity B. Exposure to UV (ultraviolet) light C. Exposure to harmful chemicals (mutagens) D. Unhealthy lifestyle → smoking, drugs, etc.

Mutation Mini “Lab”

Amoeba Sisters: on individual computers. (CC or headphones)

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.