Dihybrid Crosses Notes Pages chapter 11.3

Slides:

Advertisements

Similar presentations

Biology 12. These are crosses that involve genes for two different characteristics.

Advertisements

Mendel’s Second Law The Law of Independent Assortment Mendel also crossed plants of two traits. because two traits are involved in these crosses they are.

Do Now: Anatomy of Punnett Squares

1 Review What is probability Use Models How are Punnett squares used to predict the outcomes of genetic crosses 2 Review What is independent assortment.

Dihybrid Cross. What is Dihybrid Cross? When we study two traits on different chromosomes, at one time, we call this a dihybrid cross. You still follow.

Punnett Squares Step by step how to guide. Putting it together Alleles represented by letters –Capital letters = dominant (T) –Lowercase letters = recessive.

Punnett Squares Using a diagram to help predict offspring in genetic crosses.

So I am looking at 2 characters how many traits am I studying? I WANT PURPLE FLOWERED, YELLOW- SEEDED PEA PLANTS.

Punnett Square Practice Problems. Create a punnett square to determine percent probabilities of genotypes and phenotypes of the offspring of a pea plant.

Genetics Chapter 9-2. Parent Generation P1 The 2 organisms that are used to reproduce.

Predicting the Traits of Offspring By Reginald Punnett.

Dihybrid Crosses (two traits) Independent Assortment: When looking at the inheritance of more than one trait, like ears and fur color on a rabbit, if the.

Single-Factor Punnett Square Notes. Punnett Square A diagram that can be used to predict the gene combinations that might result from a cross.

Dihybrid Crosses: Setting Up Punnett Square A cross involving two pairs of contrasting traits Round & Tall x wrinkled & Short (RrTt x rrtt) Use ‘FOIL’

6.3 Genetics and Predictions. You will be able to: 1.Explain how probability is used in genetic predictions 2.To construct a Punnett Square for monohybrid.

Punnett Square Notes 1. A Punnett Square is a grid for organizing genetic information. It is VERY similar to how you predict probability. 2. A Punnett.

Test Cross Tall (dominant phenotype) plants of the F1 generation will have one of the following genotypes: DD or Dd.

Warm-up Turn in your meiosis simulation activity and your punnett piggy activity sheets.

Monohybrid Crosses These crosses involve one pair of contrasting traits. There are 5 different types which we will discuss.

GENETICS Medelian Genetics Gregor Mendel 1800’s.

Probability Probability is defined as the likelihood of an event occurring. The practice of genetics uses the concept of probability to predict the outcome.

PUNNETT SQUARES. Missing You On Cloud Nine Trail Mix.

How to a Work Punnett Square A Step by Step Process.

Dihybrid Crosses. Crosses that involve 2 traits 4 x 4 Punnett Square (16 total boxes) 2 traits in peas: R = RoundY = Yellow r = Wrinkledy = Green.

List all of the gametes that could be produced by a TtGg individual.

Monohybrid Crosses Vs. Dihybrid Crosses MENDELIAN GENETICS.

Dihybrid Crosses.

Dihybrid cross Used when looking at inheritance patterns of 2 genes on different chromosomes Independent assortment will separate the 2 homologous chromosomes.

Using Phenotype Genotype to determine.

Objective: to be able to create punnett squares and predict probabilities of the outcome 11.2.

Gregor Mendel & Punnett Squares

Predicting the Traits of Offspring

Predicting the Traits of Offspring

How to a Work Punnett Square

Dihybrid Cross.

4.4 - Dihybrid Crosses Dealing with the mating of two individuals and tracking TWO traits or genes.

Mendel…….. The Father of Genetics

Start-up for12/11/13 1. Summarize Mendel’s Law of Segregation.

Section 6-5 Part 2 Dihybrid Crosses

Heredity and Genetics Part Two Dihybrid Crosses

Punnett Squares Spring 2018.

Dihybrid Cross.

Complete incomplete and co- dominance + Dihybrid Crosses

DIHYBRID CROSSES How many different traits will be crossed in this type of cross? 2 How many total boxes? 16 How many letters at the beginning of each.

Dihybrid Cross.

7.L.4A.3 Develop and use models (Punnett squares) to describe and predict patterns of the inheritance of single genetic traits from parent to offspring.

GENETICS -2A Gregor Mendel.

Heredity and Genetics Part Two Dihybrid Crosses

8.3 Continued… Studying Heredity

Heredity and Genetics Dihybrid Crosses

Heredity and Genetics Part Two Dihybrid Crosses

HETEROZYGOUS or HOMOZYGOUS? 1. GG 2. Ll 3. tt 4. Yy 5. RR 6. Ee

Dihybrid Genotypes and Phenotypes

Punnett Square Practice Problems.

Unit 8: Mendelian Genetics

Dihybrid Crosses.

Predicting the Traits of Offspring

Dihybrid Crosses.

Predicting the Traits of Offspring

Punnett Squares Page 19.

Predicting genetic outcomes

Genotype & Phenotype 1. Introduction

Warm Up 3/4/19.

Heredity and Genetics Part Two Dihybrid Crosses

Heredity and Genetics Part Two Dihybrid Crosses

Predicting the Traits of Offspring

DIHYBRID PUNNETT SQUARES

Mendel’s Dihybrid Cross

Two Trait Crosses: The Dihybrid Cross

Presentation transcript:

Dihybrid Crosses Notes Pages 270-271 chapter 11.3

Dihybrid crosses 1. Crosses involving 2 different traits Dihybrid crosses 1. Crosses involving 2 different traits. Example: Height & color

ttgg TTGG FOIL METHOD FROM MATH TG TG TG TG tg Parents:TTGG X ttgg To figure out what goes on the top and sides of the boxes. FOIL METHOD FROM MATH ttgg TTGG PREDICT RATIOS TG TG TG TG tg

TG TG TG TG TtGg TtGg TtGg TtGg tg All offspring have the genotype TtGg and their phenotype is Tall, and green

Parents:TtGg X TtGg To figure out what goes on the top and sides of the boxes. FOIL METHOD FROM MATH TtGg TG Tg tG tg

TG Tg tG tg TG Tg tG tg

TG Tg tG tg TTGG TTGg TtGG TtGg TTGg TTgg TtGg Ttgg In Dihybrid crosses when you cross a heterozygous with a heterozygous you get a 9:3:3:1 ratio d/d d/r r/d r/r

Genotypes: Phenotypes: T= Tall G= Green t= short g= Yellow Genotypes: Phenotypes: TTGG tall,green TTGg tall, green TtGG tall, green TtGg tall, green TTgg tall, yellow Ttgg tall, yellow ttGG short, green ttGg short, green ttgg short, yellow