Presentation is loading. Please wait.

Presentation is loading. Please wait.

INCOMPLETE DOMINANCE Incomplete Dominance- Pattern of gene expression in which the phenotype of a heterozygous individual is intermediate between those.

Published bySuzanna Jones Modified over 8 years ago

Similar presentations

Presentation on theme: "INCOMPLETE DOMINANCE Incomplete Dominance- Pattern of gene expression in which the phenotype of a heterozygous individual is intermediate between those."— Presentation transcript:

1 INCOMPLETE DOMINANCE Incomplete Dominance- Pattern of gene expression in which the phenotype of a heterozygous individual is intermediate between those of the parents. Cases in which one allele is not completely dominant over another. Example: Snapdragons and Carnations

2 Incomplete Dominance- F 1 generation

3 Incomplete Dominance- F 2 generation

4

5 CODOMINANCE Codominance- The condition in which both alleles in a heterozygous organism are expressed. BOTH alleles contribute to the phenotype. The two alleles don’t blend, but are rather both present in the offspring. Examples- Checkered Chickens, Roan Horses, Roan Cows, Variegated Clover.

6 BB W W BW Codominance White chicken Black chicken Checkered BlackWhite

7 http://search.vadlo.com/b/q?rel=2&keys=Dominance+Incomplete+Dominance+Codominance+PPT Roan Horse

8 Roan Cattle Variegated Clover http://3.bp.blogspot.com/_zUPrgMM5tUg/SSVdrs59_uI/AAAAAAAAAA8/qJGjG2nZPhk/s200/codominance.GIF http://www.ccs.k12.in.us/chsteachers/BYost/Biology%20Notes/CH11notescoincompletedom_files/image004.jpg

Download ppt "INCOMPLETE DOMINANCE Incomplete Dominance- Pattern of gene expression in which the phenotype of a heterozygous individual is intermediate between those."

Similar presentations

When Genetics is Not Simple

When Genetics is Not Simple
Complex Patterns of Inheritance

Complex Patterns of Inheritance
Test Cross- Unknown Genotype

Test Cross- Unknown Genotype
Incomplete dominance This is when neither allele is dominant.

Incomplete dominance This is when neither allele is dominant.
Alternate Patterns of Inheritance

Alternate Patterns of Inheritance
Incomplete & Codominance. Complete dominance The traits studied in Mendel’s pea plants were examples of inheritance (or simple dominance): One allele.

Incomplete & Codominance. Complete dominance The traits studied in Mendel’s pea plants were examples of inheritance (or simple dominance): One allele.
Catalyst – April 23, 2010 D = dimples, d = no dimples F = freckles, f = no freckles 1.Show the dihybrid cross for the following: Female - Heterozygous.

Catalyst – April 23, 2010 D = dimples, d = no dimples F = freckles, f = no freckles 1.Show the dihybrid cross for the following: Female - Heterozygous.
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.

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.
Where did it come from? Who invented it?.  Undiscovered until 1901  Work was found! :D  Reginald Punnett wanted to use it  Help of G. H. Hardy  But.

Where did it come from? Who invented it?.  Undiscovered until 1901  Work was found! :D  Reginald Punnett wanted to use it  Help of G. H. Hardy  But.
Chapter 12.2 Warm-Up Question 4/15/10 Essential Question: How do organisms change as they go through their life cycles?

Chapter 12.2 Warm-Up Question 4/15/10 Essential Question: How do organisms change as they go through their life cycles?
Beyond Dominant and Recessive Alleles. Incomplete Dominance: when neither allele is completely dominant over the other. · Results in the heterozygous.

Beyond Dominant and Recessive Alleles. Incomplete Dominance: when neither allele is completely dominant over the other. · Results in the heterozygous.
Non Mendelian Inheritance Exceptions to the rule.

Non Mendelian Inheritance Exceptions to the rule.
Incomplete Dominance Codominance In a nutshell!. Review: Dominant/Recessive One allele is dominant over the other (capable of masking the recessive allele)

Incomplete Dominance Codominance In a nutshell!. Review: Dominant/Recessive One allele is dominant over the other (capable of masking the recessive allele)
Genetics: Incomplete Dominance & Codominance Biology 12.

Genetics: Incomplete Dominance & Codominance Biology 12.
DOMINANCE.

DOMINANCE.
Chapter 6: Introduction to Genetics Section 6-4: Different Types of Inheritance.

Chapter 6: Introduction to Genetics Section 6-4: Different Types of Inheritance.
INCOMPLETE DOMINANCE Part 2. SOME TERMINOLOGY P 1 – Original parents F 1 – First generation F 2 – Second generation P 1 X P 1 = F 1 F 1 X F 1 = F 2.

INCOMPLETE DOMINANCE Part 2. SOME TERMINOLOGY P 1 – Original parents F 1 – First generation F 2 – Second generation P 1 X P 1 = F 1 F 1 X F 1 = F 2.
Mendelian Exceptions Chapter 11 Section 3. Mendel’s Principles Revisited Inheritance of biological _____________ is determined by individual units known.

Mendelian Exceptions Chapter 11 Section 3. Mendel’s Principles Revisited Inheritance of biological _____________ is determined by individual units known.
Incomplete and Codominance. Simple Inheritance Mendel studied simple patterns of inheritance. Mendel studied simple patterns of inheritance. Found that.

Incomplete and Codominance. Simple Inheritance Mendel studied simple patterns of inheritance. Mendel studied simple patterns of inheritance. Found that.
Incomplete Dominance, Codominance and Multiple Alleles.

Incomplete Dominance, Codominance and Multiple Alleles.

Similar presentations

Ads by Google