Are all mutants bad? Mendel Workshop. Mutant An individual that has a heritable change in its DNA resulting in a novel phenotype, ie. a new allele.

Slides:

Advertisements

Similar presentations

USEFUL MUTANTS  Heritable changes can result in a useful novel phenotype, i.e., a new allele.

Advertisements

Coat Color in Mice 2 different genes determine only 3 different phenotypes, rather than 4 phenotypes typical of a dihybrid cross.

Chapter 8 Mendel & Heredity

Lecture 3: Jan. 25 Transmission genetics: independent assortment Human pedigrees.

Mendel and Inheritance MUPGRET Workshop December 4, 2004.

MAIZE (Zea mays L.) To, Dr Saba Tabasum By IMRAN JAFFAR MSc (Hons.) 2 rd semester DEPARTMENT OF PLANT BREEDING & GENETICS.

Extensions to Mendel’s Observation Types of Dominance Relationships Between Alleles of Same Locus: Complete Dominance Incomplete Dominance Codominance.

Inheritance – characteristics are passed through generations by genetic material (traits) Gregor Mendel - discovered the pattern of inheritance by studying.

Rules: Cell phones off Computers only for class-related work No food or drink in lab room Text Book: Hartwell et al Genetics from Genes to Genomes, third.

Chi- Squre Goodness of Fit Test From Ch 3 Will also include information on di-hybrid crosses.

Heredity The passing of traits from parent to offspring Traits: physical characteristics of an organism –Example: eye color, hair color, & height.

Rules: Cell phones off Computers only for class related work No food or drink in lab room Text Book: Hartwell et al., 2nd Edition 2004 Genetics from Genes.

Upcoming workshops In the month of June. Check webcite for details.

Understanding Complex Traits in Maize through Structural and Functional Genomics Georgia Davis.

Usefulness of evolutionary science. Corn There are many varieties with different uses.

Mutagenesis MUPGRET Workshop. Mutation Heritable change in the DNA sequence. Naturally occurring Induced.

Mendel and Inheritance MUPGRET Workshop June 13, 2005.

Mendel and His Peas MUPGRET Workshop Feb. 7, 2004.

Thursday Lecture – Corn

Genes and Variation 16-1.

Intro to Genetics Mr. Mah Living Environment Test Scores High: 95% Paige Wilka 89% Elizabeth 87% Block 1 Average: 42% Block 4 Average: 40% Block 5 Average:

What is a gene?. Definitions of the gene The gene is to genetics what the atom is to chemistry. The gene is the unit of genetic information that controls.

In early human history, where did people get their food? They were limited to gathering food that nature produced.

Plant Breeing and Genetic Engineering Plant Science.

 Turn in your genetics assignment to the tray. Other Inheritance Patterns.

Genetics Jeopardy GLE GLE √ √ SPI

C-13 Part II Non-Mendelian inheritance Most phenotypes reflect the influences of several to many genes and by the environment.

Figure 14.0 Painting of Mendel. Figure 14.7 Testing two hypotheses for segregation in a dihybrid cross.

“THE AMAZING MAIZE”.

Genetics.  Mendel  Studied pea plants.  Traits: something passed from parent to child.

Genetic Variation There are two main sources of genetic variation:

Year 10, Pathway C  Define the term mutation  Describe useful and harmful examples of mutations  Describe how mutations occur.

Beyond Mendelian Genetics Extending Mendelian genetics Mendel worked with a simple system – most traits are controlled by a single gene – each.

Genetics Take 2 Dihybrid Crosses. Monohybrid vs. Dihybrid Monohybrid crosses are crosses that examine the inheritance of only one specific trait. Dihybrid.

CST Prep: A. DNA, RNA, & Proteins Protein Differences.

Genes and Variation 16-1 This section describes the main sources of heritable variation in a population. It also explains how phenotypes are expressed.

Evololution Part 1 Genes and Variation Part 1: Genes and Variation.

Rules: Cell phones off Computers only for class related work No food or drink in lab room Text Book: Web page: Biol 163 Laboratories in Genetics.

Advances in Genetics Mrs. Wharton’s Science class.

Today in Lab: In Search of the Sickle Cell Gene. A Simple Mutation With a Profound Impact.

EQ: WHAT ARE THE DIFFERENT TYPES OF DOMINANCE AND HOW DO THEY AFFECT PHENOTYPES? Types of Dominance.

Exceptions to Mendel. Sometimes, genetic traits don’t work in a straight dominant or recessive manner. Here are 5 exceptions to Mendel.

Mendel and Inheritance

Lesson Plan Grade 9th-10th HS-LS1-4.

CHAPTER 9 Human Genetics

Evolution of Populations

Genetic Variation within Populations 11.1

Bellwork What is the independent variable in the experiment?

Genes and Inheritance Review

To be successful today…

Extensions to Mendel’s Observation

Genetics Notes Chapter 13.

Relationship between Genotype and Phenotype

The Sources of Variation

63 yellow & starchy, and 26 yellow & sweet.

Change in the DNA. Mutation Click this screw to go to the next slide.

Human Genetics Pp

Genetics Take 2 Dihybrid Crosses.

Beyond Dominant and Recessive Alleles

Warm Up 1 1/16 In corn, normal kernels (N) are dominant to waxy kernels. If you crossed a waxy kernel plant to a heterozygous normal plant what type.

Relationship between Genotype and Phenotype

Mrs. Harlin Mutations.

Relationship between Genotype and Phenotype

Genetics – The study of Inheritance

Relationship between Genotype and Phenotype

Genetics vocab 1.

The Development of Starches Possessing Elevated Amylose and Unique Thermal Properties using GEM Material Mark Campbell, Nathan Polaski, Amanda Wood, Meghana.

Genetics Test Review.

Ms. Cuthrell Mutations.

Linkage Groups & Chromosome Maps

Presentation transcript:

Are all mutants bad? Mendel Workshop

Mutant An individual that has a heritable change in its DNA resulting in a novel phenotype, ie. a new allele.

How we perceive mutants

The good mutants

Sweet corn Single gene mutations in several different starch biosynthesis genes have been introduced into field corn to produce the sweet corn we eat today. shrunken, sugary, amylose extender

Indian corn Single gene mutations in the anthocyanin (pigment) production pathway lead to the colored kernels we see on an ear of Indian corn.

Waxy1 A mutation in the waxy gene has been used in production of tapioca.

Useful mutations Disease resistance genes – Anthocyanin genes Insect resistance genes – Glossy mutants Flowering time genes

bin/imagebrowser_phenotypes.cgi bin/imagebrowser_phenotypes.cgi