SBI 3U Multiple Alleles.

Slides:

Advertisements

Similar presentations

Dihybrid Crosses and Blood Typing

Advertisements

Extending Mendel's Laws

Blood Type Ch. 14 and Section 37.2.

Beyond Dominant & Recessive Alleles

Bell Ringer Why is it important for people in a hospital to get the right blood type when they need if for a transfusion?

Blood types An example of a trait controlled by multiple alleles.

Patterns of Inheritance All of the traits and problems that we have talked about so far have been traits that are controlled by Dominant and Recessive.

Traits Controlled by Multiple Alleles Means that there is more than 2 alleles that control a trait. (3 or more alleles) Blood types are an example of multiple.

Okay – Not really. Other Patterns of Heredity  Polygenic traits = several genes influence the trait.  Examples: Eye color, weight, height, hair color,

Blood Types 3. Write down 3 questions & 3 facts you know about blood.

Blood Types & Inheritance

Hello. ABO BLOOD GROUP SYSTEM Introduction All human blood may look alike but when it is tested using special agents, differences become apparent.

BEYOND MENDEL’S LAWS Lesson 2.

Blood Typing Agenda: Hand in the 3 incomplete dominance questions Spotlight Multiple Alleles How is blood type determined? Blood Transfusions Solving basic.

Multiple Alleles- Blood Typing. How common is your blood type? 46.1% 38.8% 11.1% 3.9%

CO-DOMINANT ALLELES: BLOOD TYPES.  BOTH alleles are expressed, even when the genotype is heterozygous  Both alleles are represented by capital lettersEX:

4/11/ 12 Bell Ringer 1.What does incomplete dominance mean? 2.If I had a Red Homozygous Flower and a White Homozygous Flower, what would the Heterozygous.

Recessive Alleles Takes two alleles to be expressed.

Most genes have more than two alleles for the same character.

Do Now 2/10 Finish all of your blood type practice questions on the back of the notes from yesterday.

Multiple Alleles Practice Problems.

Jumpstart 12/3 A pea plant with the genotype TtWW is crossed with a pea plant with the genotype ttWw. How many different genotypes can be expressed in.

Multiple Alleles – Blood Type

Complex Inheritance Patterns. 1.Incomplete Dominance – phenotype of heterozygous is intermediate of the 2 homozygous phenotypes -results in the blending.

Most genes have more than two alleles for the same character.

Blood Typing and Blood Genetics

7.2 Dominance & Blood Type.

BLOOD TYPES. BLOOD TYPES have more than 2 allele choices = _________________________ The pattern of sugars that is attached is determined by genes Allele.

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.

CO-DOMINANT/MULTIPLE ALLELES: BLOOD TYPES

Blood Typing and Blood Genetics. Blood Genetics The human ABO gene is on chromosome 9.human ABO gene Everyone has two copies of chromosome 9 so you have.

Blood types are based on the presence or absence of specific antigens on red blood cells; four blood types: A, B, AB, O.

THERE ARE FOUR MAJOR BLOOD GROUPS DETERMINED BY THE PRESENCE OR ABSENCE OF TWO ANTIGENS (PROTEINS) –  A and B – on the surface of red blood cells: 

Special Crosses II: Blood and Sex-Linked What are multiple alleles? Multiple Alleles: when two or more alleles contribute to the phenotype. Example-

Section 12.3 Summary – pages Mendel’s laws of heredity also can be applied to traits that have more than two alleles. Multiple Alleles Govern.

ABO Blood Groups. The gene for blood type, gene l, codes for a molecule that attaches to a membrane protein found on the surface of red blood cells. The.

Complex Patterns of Inheritance INCOMPLETE DOMINANCE, CODOMINANCE, MULTIPLE ALLELES, EPISTASIS AND POLYGENIC INHERITANCE.

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

The Circulatory System: Blood Types Human Bio 11.

Multiple Alleles and Co dominance. Multiple Alleles Definition: Genes that have more than 2 alleles Example: ABO blood groups.

Multiple Alleles Human Blood Types.

Human Blood Groups.

Blood Types Write down 3 questions & 3 facts you know about blood.

Multiple Alleles 2 2.

What are the 4 human blood types?

Non-Mendelian Genetics

Multiple Alleles.

Multiple Alleles- Blood Typing

Multiple Alleles and Blood Types

Multiple Allele traits

Incomplete Dominance & Codominance

Co-dominance & Multiple Alleles Genetics of Blood

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

Blood Types A AB B O Antibody Phenotype Genotype Homozygous Recessive

Exploring Mendelian Genetics 11-3

Blood-typing genetics problems

RED BLOOD CELLS.

Blood Types Codominance/Complete Dominance

Variations in Heredity

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

Blood Typing ABO.

Watch Videos to make Interactive Notes

Blood Type and Multiple Alleles

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

Blood Type and Multiple Alleles

Co-dominance & Multiple Alleles Genetics of Blood

What is your blood type? Pg. 8-9

Presentation transcript:

SBI 3U Multiple Alleles

Multiple Alleles: Human Blood Groups In humans a single gene controls a person’s ABO blood type This gene determines what type of an antigen protein is attached to membrane of a red blood cell Three alleles A,B and O

Multiple Alleles Three blood type alleles: IA, IB , i The alleles for blood types A and B are codominant Blood type O is homozygous recessive BLOOD GROUPS PHENOTYPE GENOTYPE

BLOOD TYPES A human blood group or “type” is a group of red blood cells that have the same antigen protein markers on the cell surface There are four human blood groups: A, B, AB, O

BLOOD TYPES Blood Type % Amongst Canadians Can Receive From Can Donate To A 42 A, O A, AB B 9 B, O B, AB AB 3 A, B, AB, O O 46 AB = Universal recipient (can receive from anyone) O = Universal donor (can donate to anyone)

Question: Multiple Alleles A woman with A type blood marries a man with B type blood. They have a child with type O blood. The man says the child cannot be his. Is he correct? Show your work to prove you are right. If this child belongs to this father, what were the chances of having this child with type O blood.

2. If a woman has AB blood, and a man has type A blood, what are the possible blood types of their offspring?