Genetics Lesson 4 Mutations.

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

14.4 Gene Mutations. What is a Mutation? A mutation is any change in the amount or structure of the DNA of an organism. KEY POINT: If this occurs in somatic.

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

Gene Mutations. What are mutations and where do they occur?

Mutations (12.4) State Standard

 Mutations are changes to the base pair sequence of the genetic material of an organism.  Mutations can be caused by copying errors in the genetic material.

You have body cells and gametes.

MUTATIONS & HUMAN GENETICS Chapter 11.3, Chapter 12.

GENETICS AND GENETICALLY LINKED DISEASES Chapter 22.

Genome Human Genome = the sequence of DNA nitrogenous bases found on the 23 sets of chromosomes in humans Human Genome Project (HGP) = a collaborative.

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.

1.Most genetic disorders result from a mutation in one gene. a.Mutation: a change in an organism’s genetic material (DNA) 2.A mutated gene produces a.

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.

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 Genetic Disorders. Review One Wrong Letter Questions to think about: 1) How is the little boy in the video.

Central Dogma of Molecular Biology Genetic information flows in one direction – from DNA to RNA to proteins.

12.4 Mutations.  What is a mutation and where can it occur? Inheritable change in genetic code 99.9 % are harmful, only 0.1% are helpful  Any change.

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 SOMATIC CELLS VS GAMETES. MUTATION = ALTERATION OF AN ORGANISM’S DNA Results from Results from A malfunction during meiosis A malfunction during.

Section 11.3: Genetic Changes

Mutation: any change in the DNA of an organism.

Lecture 55 Mutations Ozgur Unal

(1) Division and differentiation in human cells

Mutations Bio Explain how mutations in DNA that result from interactions with the environment (i.e. radiation and chemicals) or new combinations.

Mutations (12.4) State Standard

A change in the DNA sequence that affects genetic information

Mutations Bio Explain how mutations in DNA that result from interactions with the environment (i.e. radiation and chemicals) or new combinations.

Copyright Pearson Prentice Hall

Mutations -Mutations are permanent changes in the sequence of DNA

DNA Mutations & Disorders

What are Mutations? Are Mutations good or bad?

A change in the DNA sequence that affects genetic information

Mutations 7.L.4A.5 Construct scientific arguments using evidence to support claims for how changes in genes (mutations) may have beneficial, harmful,

Unit 6 Notes: Cancer & Mutations

7.L.4A.5 Construct scientific arguments using evidence to support claims for how changes in genes (mutations) may have beneficial, harmful, or neutral.

KEY CONCEPT A population shares a common gene pool.

HOMEWORK: VOCABULARY somatic cell gamete homologous chromosome

Test Review Part 2 Heredity

Day 57 4/29/15 Learning Target: Genetics/Punnett Squares

Mrs. Harlin Mutations.

Causes of Mutations Activity 2.

Mutations Section 6.2.

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

Mechanisms for the Diversity of Life

Cell Divisions & Mutations

SB2. The learner will analyze how biological traits are passed on to successive generations. d. Describe the relationships between changes in DNA and potential.

Gene and Chromosomal Mutations

KEY CONCEPT A population shares a common gene pool.

Ms. Cuthrell Mutations.

A population shares a common gene pool.

What is a MUTATION? Notes.

Presentation transcript:

Genetics Lesson 4 Mutations

Mutation Mutation: a change in an organism’s DNA Several types of mutations Mutations in body cells (somatic mutation) can result in disease such as cancer Mutagens: radiations or chemicals that can cause somatic mutations Somatic mutations do not occur in the gametes: cannot be passed on

Mutation Germinal mutation: Mutation in cells that give rise to gametes (germ cells) Germinal mutations are not expressed in the carrier: only their offspring Extremely important in the mechanism of natural selection

Gene mutation

Gene mutations