Inheritance
Tags
Biology
Cegep/1
Word count
138 words
Reading time
1 minute
Laws of Inheritance
Discovered by Mendel
Law of dominance
An organism with at least one dominant allele displays the effect of the dominant allele.
Law of segregation
During gamete formation, the alleles for each gene segregate from each other so that each gamete only carries one allele for each gene.
Law of independent assortment
Genes of different traits segregate independently.
Patterns
Epistasis
Expression of a gene that alters that of a different gene
[!example] Gene for coat colour in Labrador retrievers affect the gene for deposition of pigment into hair.
Pleiotropy
Expression of one gene on multiple characters
Inverse of polygenic inheritance
[!example] Albinism
Polygenic inheritance
Expression of multiple genes on one character
Inverse of pleiotropy
[!example] Skin colour is determined by multiple genes.
Ajitani Hifumi