Dr. Howell Biology I Blacksburg High School. Look at diagram A below. What process is represented?

Slides:

Advertisements

Similar presentations

Sex-linked traits. Sex chromosomes carry genes that code for traits other than gender. Traits determined by genes on the X chromosome are called sex-linked.

Advertisements

Two copies of each autosomal gene affect phenotype.

Two copies of each autosomal gene affect phenotype.

FOR FRESHERS Mendelian Inheritance. Mendelian inheritance There are two alleles of a gene on different sister chromosomes. Dominant alleles trump recessive.

KEY CONCEPT A combination of methods is used to study human genetics.

Pedigree charts Pedigree notes handout. What is a pedigree? A pedigree is a family tree that shows how a trait is passed from generation to generation.

 Genes are found on the X AND Y chromosomes.  Genes that are carried on the sex chromosomes are called sex linked genes.

Sex Linked Traits Humans have 23 pairs of chromosomes.

Wake-up 1.A woman carrying hemophilia marries a man who is a hemophiliac. What percentage of their children will have hemophilia? 1.Cross a man heterozygous.

Heredity Study Guide Answer Key.

The Human Genome Chapter 14 Donna Howell Biology I Blacksburg High School.

Pedigrees Pedigrees study how a trait is passed from one generation to the next. Infers genotypes of family members Disorders can be carried on… – Autosomes.

Today- Criss Cross Applesauce worksheet Tomorrow: Human Genome notes Chapter 14.

Pedigrees A pedigree is a diagram of family relationships that uses symbols to represent people and lines to represent genetic relationships. In a pedigree,

Pedigrees and Karyotypes. Pedigree definition: Pedigree: a family history that shows how a trait is inherited over several generations Pedigrees are usually.

7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.

Chapter 12 Review Sheet. What are the sex chromosomes? X Y.

End Show Slide 1 of 43 Copyright Pearson Prentice Hall 14–1 Human Heredity 14-1 Human Heredity.

Pedigrees. What is a pedigree? A pedigree is a family tree that shows the inheritance of a trait.

EQ: What can a pedigree tell you about the inheritance of a trai t ?

Human Heredity Chapter 14-1, 14-2, 14-3.

Chapter 14 - The Human Genome

Inheritance of Traits: Pedigrees

The Human Genome Ch. 14. Human Chromosomes Karyotype = how chromosomes are arranged in pairs Humans have 46 chromosomes or 23 pairs The 23 rd pair are.

Chapter 7 Extending Mendelian Genetics. Karyotype = picture of all chromos in cell They can show a change in chromos whether autosomal or sex-linked.

Pedigree Charts.

CP Biology Genetics Unit

Pedigrees Objective: E5 - Explain how pedigrees are used to study inheritance of traits.

Ch. 14 The Human Genome.

What is a Pedigree… And Nooooo it’s not Dogfood. Biology I Searcy Ninth Grade Center.

Go to Section: Unit 6D & ESex Linked Traits & Pedigrees **This needs to be separated into two sections and the sex link traits need to be expanded to include.

Chap 6 notes Human Inheritance. Karyotype Shows all 46 human chromosomes 23 pairs Chromosomes 1-22 are autosomes (regular chromosomes) The last set of.

Human Genetics. Human Heredity Studying human genetics.

Pedigree Notes.

Pedigrees 4/13/2010 Pedigrees The risks of passing on a genetic disorder to offspring can be assessed by genetic counseling, prenatal testing, and by.

Pedigree Analysis.

Inheritance Pedigree Analysis.

Two copies of each autosomal gene affect phenotype.

Pedigree notes handout

Pedigree Charts.

Pedigree Charts.

Two copies of each autosomal gene affect phenotype.

14-1 Human Heredity Photo credit: Richard Hutchings/Photo Researchers, Inc.

Two copies of each autosomal gene affect phenotype.

Orderly diagram of a family’s genetic traits

Karyotypes and Pedigrees

Two copies of each autosomal gene affect phenotype.

Two copies of each autosomal gene affect phenotype.

PEDIGREES & Sex-Linked Traits & Disorders

The Human Genome Ch. 14.

What do the circles represent?

Two copies of each autosomal gene affect phenotype.

S3: HEREDITY E5: PEDIGREES

Two copies of each autosomal gene affect phenotype.

Codominance and Pedigree Charts

Take out pedigree homework

STATION 1 How many males are affected? How many females are affected?

Genetic Diseases & Pedigrees

Sex-Linked Inheritance

Cells and Inheritance S7L3. Students will recognize how biological traits are passed on to successive generations. a. Explain the role of genes and chromosomes.

Two copies of each autosomal gene affect phenotype.

Two copies of each autosomal gene affect phenotype.

Pedigree Charts.

Chapter 14 The Human Genome.

Two copies of each autosomal gene affect phenotype.

Two copies of each autosomal gene affect phenotype.

Presentation transcript:

Dr. Howell Biology I Blacksburg High School

Look at diagram A below. What process is represented?

Look at diagrams B and C below. What is this called?

How many TOTAL chromosomes does a human have?

How many AUTOSOMES does a human have total?

How many SEX CHROMOSOMES does a human have?

What sex chromosomes does a male have? A female?

What is sickle cell disease?

Match the disease to its chromosomal disorder:

What sex is the individual in this karyotype?

What is a pedigree?

What does a square represent? What does a circle represent? What does a shaded shape mean? What does a horizontal line between two people mean? What does a vertical line coming off of married people mean? The children The person has the disease A male A female The are married In a pedigree:

What is/are the possible genotype(s) of individual # 3 below?

What is the possible genotype(s) of individual #12 below:

An autosomal recessive disorder means that the affected individuals will have what genotype? Could have any of the genotypes Either FF or Ff FF Ff ff

What genotype(s) does an individual with an autosomal dominant disease have? Could have any of these genotypes PP pp Pp Either PP or Pp

What is (are) the possible genotype(s) of individual #2?

What is (are) the possible genotype(s) of individual #7?

Which chromosome are most sex- linked genes found?

What sex – male or female – is most affected by sex-linked genes?

What is gene therapy?

What are polygenic traits?

What disease does this karyotype indicate?

What are some uses for DNA fingerprinting?

Who committed the crime?