Janire Ramos Azulay 4ºB

My family tree about curly hair

Explanation of the trait

● Curly hair is an example of intermediate inheritance which means that the phenotype of the heterozygous F1 generation is an intermediate trait ( wavy hair) between the 2 homozygous progenitors [with straight(aa) and curly(AA) hair].

● Curly (AA) X Straight (aa) Wavy hair (Aa)

Aa

Aa aa aa Aa

aa Aa Aa

AA aa Aa aa

AA Aa

Dad´s side Mum´s side

aa

aa Aa

Aa

aa aa Aa

aa

aa aa

Dominant (AA,Aa)

Recessive (aa)

Curly hair (AA) (black)

Straight hair (aa) (white)

Wavy hair (Aa) (green)

Me