MUTATIONS

Mar 26, 2019

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MUTATIONS. DEFINITION. MUTATIONS IN GENES CAN CAUSE A DIFFERENT……. TYPES OF GENE MUTATIONS. See textbook, page 136. Video Clip. Science Explorer: Sickle-cell Anemia. MAKING A PROTEIN FROM mRNA. C C A G C G U A G C C U A U A. SUBSTITUTION. C C A G C G U A G C C U A U A. DELETION.

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MUTATIONS

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MUTATIONS
DEFINITION
MUTATIONS IN GENES CAN CAUSE A DIFFERENT…….
TYPES OF GENE MUTATIONS • See textbook, page 136.
Video Clip • Science Explorer: Sickle-cell Anemia.
MAKING A PROTEIN FROM mRNA C C A G C G U A G C C U A U A
SUBSTITUTION C C A G C G U A G C C U A U A
DELETION C C A G C G U A G C C U A U A
ADDITION C C A G C G U A G C C U A U A
MUTATIONS DURING MEIOSIS
EFFECTS OF MUTATIONS

Mutations

Mutations. Mutate. A change in a cell which changes a trait. Usually a change in a gene sequence: …AACTAGGG A CATTTACG… …AACTAGGG C AATTTACG… Can also be a gene loss. Mutations. Causes: Radiation e.g. UV Chemical e.g. Cigarette Smoke Spontaneous Types:

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MUTATIONS

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MUTATIONS!

MUTATIONS!. Part One. MUTATIONS: WHAT ARE THEY ?. MUTATIONS:. are changes in the genetic material of the cell. can occur at the level of an individual DNA strand ( a point mutation ) or to an entire chromosome ( a chromosomal mutation ). MUTATIONS:.

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MUTATIONS

MUTATIONS. Fitness of Mutations. The fitness of a mutation describes its value to the survival and reproductive success of the organism. A mutation may turn out to be: Lethal : Many mutations are lethal and embryos are non-viable .

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Mutations

Mutations. Monday November 5 th. What you need to know. A change in the DNA, or the genetic code of a cell, is called a mutation. Mutations can be classified as beneficial, neutral (cause no effect), or harmful . Harmful mutations may cause cancer

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Mutations

Biology 12. Mutations. JOKE OF THE DAY:. What Are Mutations?. Changes in the nucleotide sequence of DNA May occur in somatic cells (aren’t passed to offspring) May occur in gametes (eggs & sperm) and be passed to offspring

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Mutations

Mutations. From Gene to Protein Honors Biology Ms. Kim. Mutations. Mutations Are changes in the genetic material (DNA) of a cell 2 TYPES 1. Point mutations can affect protein structure and function Are changes in just one base pair of a gene. POINT MUTATIONS.

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Mutations!!!

Mutations!!!. Don’t forget………………. What nitrogen base pairs with Adenine?. What nitrogen base pairs with Guanine?. What is the name given for every set of three nitrogen bases on the DNA?. What does one codon code for?. When amino acids bond together, what do they form?. Gene Mutations.

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Mutations

Mutations. Chapter 12.4. Mutation.  A result of changes in individual genes or the gene arrangements on chromosomes Original code (order of bases) is changed 2 different kinds Gene mutation Chromosome mutation. Gene Mutations.  Mutations occurring within a gene

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Mutations

Mutations. Gene Mutations. Mutations that result in changes to a single gene. Point Mutation. One base pair in the DNA sequence is copied incorrectly. Sickle Cell Anemia. Normal vs. Sickle Cell. Normal DNA: {TAG}{CTT}{ATT} RNA: {AUC}{GAA}{UAA} Sickle Cell

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Mutations. The fat cat ate the wee rat ???. Point Mutation. = a simple change in one base of the gene sequence. This is equivalent to changing one letter in a sentence, EXAMPLE: where we change the 'c' in cat to an 'h': Original - The fat cat ate the wee rat.

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Mutations

Mutations. Start a New Page Add it to your TOC. Thesunwashotbuttheoldmandidnotgethishat. This is (kind of) like a strand of DNA. Each letter represents a base (A,C,T,G). The sun was hot but the old man did not get his hat. It has meaning when we break it into groups of three.

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Mutations

Mutations. Mutations. A section of DNA on a chromosome that directs the making of a specific protein is called a gene Genes control the traits inherited by an organism If a change occurs in a gene or chromosome, a trait of that organism may be changed

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Mutations!

Mutations!. Types of Mutations . Point Mutations: one base is changed Substitutions Insertions Deletions Both Insertions and Deletions are also called frameshift mutations because the codons are not read correctly Mutations can happen in both DNA and in RNA. Mutations.

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Mutations. What happens if there is a mistake in DNA? What causes the change in DNA? How does that mistake affect an organism?. Interest Grabber. Section 12-4. Determining the Sequence of a Gene

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Mutations. DNA Mistakes. DNA is a molecule that replicates, works and copies with very high accuracy DNA has enzymes that make sure that it works with a high level of accuracy and detail DNA can often work without mistake. DNA Mistakes. DNA can however make mistakes

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Mutations

Mutations. In molecular biology and genetics, mutations are changes in the DNA sequence of a cell's genome. http://learn.genetics.utah.edu/content/variation/. http://www.genetichealth.com/g101_changes_in_dna.shtml.

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Mutations. Natural and Manmade. What are Mutations?. A mutation is a change in the structure of DNA of an organism. Mutations can occur randomly or may be deliberately caused by scientists in a laboratory. What are Mutations?. Mutations may be harmful or helpful.

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Mutations

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 (eggs & sperm) and be passed to offspring. Are Mutations Helpful or Harmful?. Mutations happen regularly

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MUTATIONS

GENETICS

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Mutations

Mutations. Mutation. Change in the genetic material Mutations may be neutral, beneficial, or harmful Mutagen: Agent that causes mutations Spontaneous mutations: Occur in the absence of a mutagen. Mutation. Mutations Transformation Transduction Conjugation Jumping Genes. Mutation.

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