Is Curly Hair Dominant

Although hair color is dependant on dominant and recessive qualities predicting hair color is more complex than predicting other genetic traits.

Is curly hair dominant. In the past geneticists believed that curly hair was a dominant gene and straight hair a recessive one. Curly hair is an autosomal dominant trait. Curly hair is mostly determined by genes and less by environment.

However you asked for something a little different. The mother is heterozygous when it comes to curly hair a a and homozygous recessive when it comes to hair color b b. Rather than one or the other hair color is additive meaning the pigment melanin along with a variety of genes determines how dark your hair will be.

Hair type is an interesting case of something called incomplete dominance. Parents with curly hair tend to have children with curly hair. People sometimes suffer from an autosomal dominant disorder which means that they run a 50 chance of having a child with a mutated and dominant gene.

People with freckles have inherited at least a pair of freckles dominant gene and those without have inherited 2. For example if curly hair is a dominant gene then you re more likely to have curly hair if it runs in your gene pool. I dont want the answer to be long or boring so here s a short and simple one there are two versions of the hair type gene curly c and straight s.

An autosomal dominant trait is one wherein one of the parents father or mother has a mutated and dominant gene while the other doesn t. Straight curly and wavy. The term dominant means that a gene will either mask or suppress other traits from appearing.

What this means is that with hair type if you have one of each version of the gene you get a mix of the two or wavy hair. Therefore the curly hair gene is dominant and straight hair gene is recessive. 3 this has aided genetic studies so called genomewide association studies gwas to try to identify the causative genes for hair traits and to explain their role in hair shape.