Two copies of each autosomal gene affect phenotype.

Slides:



Advertisements
Similar presentations
Two copies of each autosomal gene affect phenotype.
Advertisements

Two copies of each autosomal gene affect phenotype.
Please make a list of your observable traits. Be specific.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT Phenotype is affected by many different factors.
13.1 Ecologists Study Relationships Unit 3: Genetics Chapter 7 Extending Mendelian Genetics Section 7-1 Chromosomes and Phenotype.
 Genes are found on the X AND Y chromosomes.  Genes that are carried on the sex chromosomes are called sex linked genes.
Two copies of each autosomal gene affect phenotype.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
Sex-linked Traits.
7.4 Human Genetics and Pedigrees Bell Work. 7.4 Human Genetics and Pedigrees Bell Work.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
7.1 Chromosomes and Phenotype KEY CONCEPT The chromosomes on which genes are located can affect the expression of traits.
7.1 Chromosomes and Phenotype
Two copies of each autosomal gene affect phenotype.
7.1 Chromosome and Phenotype
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Objectives Students will be able to: Relate dominant-recessive patterns of inheritance in autosomal chromosomes to genetic disorders. Describe patterns.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Biology Unit Four C – Chromosomes and Phenotype
Section 7-1 “Human genetics”
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Chapter 7 : Extending Mendelian Genetics.
Mendelian VS. Non-Mendelian Genetics
Mendel’s Genetics Chapter 7.
KEY CONCEPT A combination of methods is used to study human genetics.
HEREDITY.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Two copies of each autosomal gene affect phenotype.
Objectives Relate dominant-recessive patterns of inheritance in autosomal chromosomes to genetic disorders. Describe patterns of inheritance in sex-linked.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Sexually reproducing organisms have two of each chromosome.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Two copies of each autosomal gene affect phenotype.
Patterns of Inheritance
____ ____ of each ________ ____ affect ___________.
KEY CONCEPT A combination of methods is used to study human genetics.
KEY CONCEPT A combination of methods is used to study human genetics.
Sex-linked Traits.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
S3: HEREDITY E1: SEX-LINKED TRAITS
Human Genetics and Pedigrees
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
7.1 Chromosomes and Phenotype
Sex-Linked Inheritance
Exceptions to Mendel’s Rule
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
KEY CONCEPT A combination of methods is used to study human genetics.
Two copies of each autosomal gene affect phenotype.
Two copies of each autosomal gene affect phenotype.
KEY CONCEPT A combination of methods is used to study human genetics.
Presentation transcript:

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

Two copies of each autosomal gene affect phenotype. Mendel studied autosomal gene traits, like hair texture. Autosomes are all chromosomes except the sex chromosomes. 2 alleles must interact to provide a phenotype.

Mendel’s rules of inheritance apply to autosomal genetic disorders. A heterozygote for a recessive disorder is a carrier. Disorders caused by dominant alleles are uncommon. (dominant)

Males and females can differ in sex-linked traits. Sex chromosomes determine the sex of an organism 2 in mammals, different in other organisms Genes on sex chromosomes are called sex-linked genes. Y chromosome genes in mammals are responsible for male characteristics. X chromosome genes in mammals affect many traits.

Male mammals have an XY genotype. All of a male’s sex-linked genes are expressed. Males have no second copies of sex-linked genes.

Female mammals have an XX genotype. Expression of sex-linked genes is similar to autosomal genes in females. X chromosome inactivation randomly “turns off” one X chromosome.

http://www.youtube.com/watch?v=MaW8rhSgEUs mosaicism

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.