Curly Hair Punnett Square

Straight curly and wavy.

Curly hair punnett square. In humans wavy hair cs results by the co dominant situation of curly hair c and straight hair s. Yesterday s post about the evolutionary origins of curly hair got me thinking about how we inherit a curly hair pattern and pass it on to children. There are two versions of the hair type gene curly c and straight s. Hair type is an interesting case of something called incomplete dominance.

There is also a huge range of textures r. However you asked for something a little different. 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. Say we d like to know the chances that our baby will have curly and light colored hair.

We can see this information from the punnett square above. In humans curly hair is dominant to straight hair. So for hair type cc gives curly cs gives wavy and ss gives straight hair. 81 versions of the punnett square.

Since i mentioned above that curly hair is an incomplete dominance you can use the analogy in the video above with the red and white flowers to predict whether or not my children will have curly hair. If the only alleles for hair texture were straight and curly there would be three phenotypes. Determine the ratio of straight hair offspring to curly hair offspring. Today i d like to add a mini post to the series about the genetics behind hair.

Hair texture is of course hereditary but can be affected by outside factors. When you draw the punnett square my kids could inherit straight hair 50 chance or curly hair 50 chance. A person with one copy of the straight hair allele and one copy of the curly hair allele will have wavy hair. The expected phenotype frequencies are that the offspring has chance of having straight hair h s has chance of curly hair h c has 2 4 chance of having wavy hair h s h c.

The mother of a child is a blonde with curly hair while the father has light colored straight hair. If you want to save yourself a lot of time and hassle we recommend you use our dihybrid cross calculator. Complete this punnett square to show the allele combinations of the possible offspring produced. What are the possible results if a culry haired man and wavy haired woman have children.

I am most definitely not a biologist so please take this explanation with that. Two curly haired parents have a straight haired daughter.