Mendel and his Laws of Heredity

Mendel

Law of dominance

In a heterozygote, one allele conceals the presence of another allele for the same characteristic.

Interactive Example

Law of segregation

All individuals possess two alleles for a trail out of which only one allele is passed on to the offspring.

Interactive Example

Law of independent assortment

The innheritance of any pair of genes from the parent is independent of the inheritance of any other pair.

Interactive Example

Deviations from Mendels Laws

Mendel

Incomplete Dominance

A form of gene interaction where in both the alleles of a gene at any locus are expressed partially. This results in an intermediate phenotype different from both parents.

Interactive Example

Co-dominance

Both the alleles of a gene in a heterozygote are fully expressed resulting in a phenotype that contains both traits.

Interactive Example

Multiple Alleles

More than just the typical two alleles that usually code for a certain characteristic in a species.

Interactive Example

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Interactive Example

Pleitropic Genes

A pleiotropic gene is a single gene that controls more than one trait.

Interractive Example