Blood Type Inheritance and the Punnett Square

Slides:

Advertisements

Similar presentations

Advertisements

Human Genetics It’s all in the….

THE MONOHYBRID CROSS FOLLOWING THE INHERITANCE OF ONE TRAIT.

Genetics & Heredity. Who was Gregor Mendel? Austrian monk who studied mathematics and science As a boy he could predict the possible types of flowers.

Genetics Chapters 9-1 & 9-2. Incomplete dominance There is no dominant allele or recessive allele The 2 alleles are blended and make up a new physical.

Incomplete Dominance Incomplete Dominance: The heterozygous genotype produces a phenoytype that falls in between the dominant trait and the recessive trait.

Predicting the Traits of Offspring By Reginald Punnett.

 As in monohybrid crosses, you can’t tell by looking at the dominant trait whether it is homozygous or heterozygous.

Codominance and Sex-linked traits. CODOMINANCE 2 alleles are dominant and both are expressed Most common examples are blood type and flower color.

Punnett Square Percentage Practice 1. Complete all squares and percentages. -Work slowly and carefully. -Little mistakes add up! 2. Check your answers.

Punnett Square Part 2 A punnett square is used to show the possible allele (gene) combinations for the offspring of 2 parents. The four boxes represent.

Genetics the study of heredity. Gregor Mendel “Father of Genetics” Heredity -the transfer of characteristics from parents to offspring through their genes.

Topic: Genetics Aim: Describe multiple alleles and explain the inheritance of blood types. Do Now: Review HW: Ditto – Reproductive Systems Review (BOTH.

Genetics of Blood Types. Genotypes and Phenotypes Type A, Type B, Type AB and Type O blood are phenotypes. It is not always possible to tell the genotype.

Click F5 Try to answer each question on your own before revealing the answer.

Genetics & Heredity Mr. Nigh

Genetics & Heredity. Who was Gregor Mendel? Austrian monk who studied mathematics and science As a boy he experimented with pea plants Made careful use.

Blood Types The Genetics of Blood Type.

Punnett Squares When we know information about the genetic makeup of two parents, we can predict the genetic makeup of any possible offspring created between.

genetics 1. create flashcards for the 13 vocabulary terms. 2. When you complete the flashcards you need to show them to me 3. This powerpoint can also.

Chapter 14 Chapter 14 Blood Groups. ABO Blood Group is determined from three alleles. ABO Blood Group is determined from three alleles. Type A Type A.

GENETICS PUNNETT SQUARES Tt T t T t. TOOLS TO KNOW A PUNNET SQUARE IS A TOOL USED TO PREDICT THE POSSIBLE GENOTYPES FOR THE OFFSPRING OF TWO KNOWN PARENTS.

Traits and Inheritance Have you wondered why you resemble the other people in your family?

Sex-Linked Traits. Inheritance of Traits  X-linked Disorders - occur mainly in males because the mother usually donates the recessive allele and males.

Understanding Inheritance Essential Question: What determines the expression of a trait? How can inheritance be modeled?

Genes Observable traits are the result of genes. – Genes are found on the chromosomes in our cells – Each observable trait is determined by two genes,

May 4, What is an allele?. Genotype: genetics of trait (what alleles?) Homozygous: two copies of the same allele –Homozygous dominant (BB) –Homozygous.

Incomplete Dominance: The heterozygous genotype produces a phenoytype that falls in between the dominant trait and the recessive trait. Incomplete Dominance.

Blood Types Probability

TOPIC: Genetics AIM: How are human traits inherited?

6d. Blood Typing Chapter 7.1 & 7.2.

7 Steps for Solving Monohybrid Cross Problems

Punnett Squares pp

In humans, dimpled cheeks are a dominant trait, with a genotype of DD or Dd. Non-dimpled cheeks are a recessive trait with a genotype of dd. Imagine.

Predicting the Traits of Offspring

Predicting the Traits of Offspring

Codominance Notes Mrs. Callan 2017.

Multiple Alleles.

Check In Homework State the name of the following genotypes: AA Aa aa

Blood Typing (3R).

Formed from both inherited alleles.

Phenotype the set of observable characteristics of an individual resulting from their DNA information.

Blood Types A AB B O Antibody Phenotype Genotype Homozygous Recessive

Genetics Notes Chapter 13.

Week 9 Vocab Definitions

Genetics Objective: To learn how to predict the probable outcome of phenotypes using punnett square.

Biology Unit 5 Notes: Mendelian Genetics

Genetics Beyond Mendel

Punnett Squares Punnett Squares Z Z Z Z Z z z z z z z

Or…..”What’s in your jeans?”

Punnett squares.

Biology Unit 5ish Notes: Mendelian Genetics

Incomplete Dominance Incomplete Dominance: The heterozygous genotype produces a phenoytype that falls in between the dominant trait and the recessive trait.

11-2 Genetic Crosses.

4/11/ 12 Bell Ringer What does incomplete dominance mean?

Multiple alleles.

Incomplete Dominance Incomplete Dominance: The heterozygous genotype produces a phenotype that falls in between the dominant trait and the recessive trait.

Predicting the Traits of Offspring

Predicting the Traits of Offspring

Punnett Squares.

Punnett Square Notes Biology - Ms. Spinale.

Solving Punnett Squares

Blood Type Punnett Square

3/19/12 Objective: Understand codominance and incomplete dominance

Predicting the Traits of Offspring

GENETICS HEREDITY.

PROBABILITY p. 181 and pp

Inheritance & Variance Traits Vocabulary

Punnett Square Vocabulary

Presentation transcript:

Blood Type Inheritance and the Punnett Square

Blood Type Inheritance Type O blood = oo (recessive) Type B blood = BB (homozygous) or Bo (heterozygous) Type A blood = AA (homozygous) Ao (heterozygous) Type AB blood = AB

Terms to be familiar with Homozygous = same letters (alleles) Heterozygous = different letters (alleles) Genotype = letters (inherit 1 from each parent) Phenotype = physical appearance of trait (actual blood type) Dominant = shows up; covers up recessive trait Recessive = trait that can be masked

Punnett Square

Punnett Square One parent’s genotype goes here The other parent goes here

One parent’s genotype goes here Punnett Square One parent’s genotype goes here Possible Offspring Genotypes Go Here The other parent goes here

One parent’s genotype goes here Punnett Square One parent’s genotype goes here Possible Offspring Genotypes Go Here (25% chance) The other parent goes here

Example Jack and Jill get married and have a child. Jack is heterozygous for the blood Type A and Jill has type AB blood. What is the chance that they will have a baby with type B blood?

Punnett Square

Punnett Square drop and drag to fill in the squares A o AA Ao AB Bo A B

Based on the Punnett Square, there is a 50% the child will type A blood, 25% the child will have type AB blood, and a 25% the child will have B blood. A o AA Ao AB Bo A B

Example Jack and Jill get married and have a child. Jack is heterozygous for the blood Type A and Jill has type AB blood. What is the chance that they will have a baby with type B blood? Based on the results on the previous slide, there is a 25% chance a child of Jack and Jill’s will have type B blood.

Example 2 Bonnie and Clyde are having a baby and they want to know if there is a chance that they can have a child with Type O blood. Bonnie is homozygous for type A blood and Clyde has type O blood. What did you find out?

Punnett Square

Punnett Square drop and drag to fill in the squares o o Ao A

They will not have a child with Type O blood They will not have a child with Type O blood. There children will only have type A blood (100% chance). o o Ao A