DNA, protein synthesis, gene expression & mutations

Slides:

Advertisements

Similar presentations

Chapter 13.3 (Pgs ): Mutations

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.

Mutation Change in a cell’s DNA. Gene expression Gene expression is regulated by the cell, and an organism’s response to its environment. Mutations can.

Mutations Chapter 12.4.

Gene Regulations and Mutations

Mutations. Protein Synthesis Review Video What is a mutation? Change in the DNA nitrogen base sequence of a gene.

1/9/15 Starter: What affect do mutations have on proteins? 1/9/ Mutations Poster Practice/Application/Connection/ Exit: 3. Use your chromosome.

Chapter 11.6 Mutations. Definition- Mutation- a change in the DNA nucleotide sequence Mutation- a change in the DNA nucleotide sequence Types of mutations:

MONDAY. BIO I 1,2,5,7 Period Bell work: Make a chart comparing the helpful and harmful results of mutations as found on pg 375 & 376. Objective:

What exactly is a mutated gene? Nope, that’s not it.

Mutations and gene regulation lecture 12-4, 12-5.

MUTATIONS. Mutations are heritable changes in genetic information Only mutation in the GAMETES can be passed on from generation to generation There can.

 During replication (in DNA), an error may be made that causes changes in the mRNA and proteins made from that part of the DNA  These errors or changes.

8.7 Mutations A mutation is a change in an organism’s DNA. This may or may not affect phenotype.

Gene Regulation and Mutation Notes and Questions How do mutations affect a cell?

Reality Science Fiction! Just silly.. 1. Some mutations affect a single gene, while others affect an entire chromosome. 2. A mutation is a change in an.

Mutations and Gene Regulation Chapter 12 Sections 4-5.

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 KEY CONCEPT Mutations are changes in DNA that may or may not affect phenotype.

12.4 Mutations Changes in the genetic material Mistake in copying, carcinogens Single gene = gene mutation Entire chromosome = chromosomal mutation.

A mutation is a change in an organism’s DNA.

Gene Mutations Chapter 11.

12.4 Mutations Changes in the genetic material

Mutations TSW identify and describe the various types of mutations and their effects.

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.

Kinds of Mutations Point Mutation Occur at a single point in the DNA

A mutation is a change in an organism’s DNA.

A mutation is a change in an organism’s DNA.

A mutation is a change in an organism’s DNA.

Mutations Mutations are changes in DNA.

DNA MUTATIONS A mutation is a change in the DNA code.

Some mutations affect a single gene, while others affect an entire chromosome.

A ____________ is a change in an organism’s DNA.

Recombinant DNA & Mutations

A mutation is a change in an organism’s DNA.

A mutation is a change in an organism’s DNA.

Sources of Variation.

A mutation is a change in an organism’s DNA.

12.4 Mutations Kinds of Mutations Significance of Mutations.

Mutations Chapter 8.7.

How do external factors change an organism's genes to affect their offspring? Lecture 2: Environmental factors, such as radiation, can cause mutations.

Gene and Chromosomal Mutations

Mutation: Some Definitions

A mutation is a change in an organism’s DNA.

A mutation is a change in an organism’s DNA.

Mutation, Natural Selection, and Artificial Selection

Objective: Explain the main types of mutations

Copyright Pearson Prentice Hall

Genes & Mutations Miss Richardson SBI4U.

A mutation is a change in an organism’s DNA.

Gene Mutations.

A mutation is a change in an organism’s DNA.

DNA & Chromosomes Notes

Academic Biology Notes

Protein Synthesis and Mutation

A mutation is a change in an organism’s DNA

Mutations 1) Gene Mutations = change in pattern of DNA bases

Mutations Big Q: What are mutations?

Gene Regulation and Mutation

DNA: The Code of Life Table of Contents The Genetic Code

Gene Mutations.

Presentation transcript:

DNA, protein synthesis, gene expression & mutations Our good looks! DNA, protein synthesis, gene expression & mutations

Assume these are all from the same person: what do these different cell types have in common?

If all cells have the same DNA, how are different cells different? Result of control of gene expression

Different Genes – Different Functions Pancreas Cell Bone Cell Brain Cell

Types of regulatory proteins activator proteins: repressor proteins:

Additional means of regulating gene expression

To complicate matters . . . The environment can play a role in gene expression

What’s a mutation?

Types of mutations Base substitutions Base insertions or deletions Chromosomal aberrations

Base substitutions May have no effect due to May have big effect

Base substitution

Base insertions or deletions The addition or removal of one or more bases

Base deletion

Chromosomal aberrations Changes to the overall organization of genes on a chromosome

Causes of mutations spontaneous mutagens

Mutation summary 1.