That means that even if only one of your two alleles is for brown hair, your hair will be brown. It turns out that brown hair is dominant. There is a 75% probability that their child will have freckles, or a 25% chance of a child with no freckles. Using the parents’ genotypes, each inner square is filled with a possible genotype for their child. What percentage of the offspring will have freckles? AncestryDNA®can tell you whether you’re likely to have freckles according to your DNA. Even though they’re most visible on people who have light skin, anyone can have freckles. As freckling is considered as an independent trait, no gene or locus for it has been identified to date. What type of inheritance is freckles?įreckles are numerous pigmented macules on the face commonly occurring in the Caucasian and Chinese population. … If the trait is recessive, neither parent is required to have the trait since they can be heterozygous. If the trait is dominant, one of the parents must have the trait. How do you know if it is a dominant or recessive trait?ĭetermine whether the trait is dominant or recessive.
Blond or ginger colored mice were found to have the same gene variations. Even though they are the same gene! The MC1R gene is actually responsible for hair color in many animals. It leads to the confusing result that freckles are dominant and red hair is recessive. More recent scientists believe that more than one gene may be involved. Early geneticists reported that curly hair was dominant and straight hair was recessive. This trait is reportedly due to a single gene the presence of freckles is dominant, the absence of freckles is recessive1. 28 Which of these hair traits is a recessive gene?Īre freckles dominant or recessive traits?.27 What is an example of a dominant trait?.26 Is the trait for fur color a single gene trait or a polygenic trait?.20 What is the genotype of a woman with no freckles?.17 Can 2 blonde parents have a dark haired baby?.13 What nationality is most likely to have freckles?.11 What are some examples of dominant and recessive traits?.10 What are examples of recessive traits?.6 What percentage of the offspring will have freckles?.4 What type of inheritance is freckles?.3 How do you know if it is a dominant or recessive trait?.1 Are freckles dominant or recessive traits?.