Presentation is loading. Please wait.

Presentation is loading. Please wait.

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.

Published byOphelia McDaniel Modified over 5 years ago

Similar presentations

Presentation on theme: "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."— Presentation transcript:

1 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. Question: Bell Ringer #6. Hand in when finished.

2 Protein Synthesis Practice
Together then individual

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

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

5 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

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

7 Example of Point Mutations

8 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

9

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

11 Chromosomal Deletion

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

13 Chromosomal Inversion

14 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

15 Chromosomal Insertion

16 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

17 Chromosomal Translocation

18 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.

19 Mutation Mini Lab Use codon chart and notes to complete.
Ask if you need help.

Download ppt "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."

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.

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.
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.

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.

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.

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 Section 11.3 pgs. 296 - 301.

MUTATIONS Section 11.3 pgs
Section 11.3 MUTATIONS Section 11.3 pgs. 296 - 301.

Section 11.3 MUTATIONS Section 11.3 pgs
Mutations Chapter 12.4.

Mutations Chapter 12.4.
Genetic Changes 11.3.

Genetic Changes 11.3.
Mutations Genetic Changes.

Mutations Genetic Changes.
Genetic Mutations Increasing Genetic Diversity May 4, 2010.

Genetic Mutations Increasing Genetic Diversity May 4, 2010.
1 NOTES: 13.3 - MUTATIONS 2 MUTATIONS: MUTATIONS = changes in the DNA sequence that affect genetic information.

1 NOTES: MUTATIONS 2 MUTATIONS: MUTATIONS = changes in the DNA sequence that affect genetic information.
MUTATIONS. Mutations are heritable changes in genetic information Only mutation in the GAMETES can be passed on from generation to generation There can.

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.

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. 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.

MUTATIONS. Mutant An organism expressing a mutated gene.
12.4 Mutations Copyright Pearson Prentice Hall.. What Are Mutations? Changes in the nucleotide sequence of DNA (genetic material) May occur in somatic.

12.4 Mutations Copyright Pearson Prentice Hall.. What Are Mutations? Changes in the nucleotide sequence of DNA (genetic material) May occur in somatic.
Genetic Changes: Mutations Chapter 11.3. I. MUTATION  ANY change in an organisms DNA sequence  Causes  Errors in replication  Transcription  Cell.

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.

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.
DNA Mutations Section 11.3. Review DNA controls structure and function of cells because it holds the code to build all proteins. DNA transcription translation.

DNA Mutations Section Review DNA controls structure and function of cells because it holds the code to build all proteins. DNA transcription translation.
Mutations SBI3U Ms. Lefebvre

Mutations SBI3U Ms. Lefebvre

Similar presentations

Ads by Google