What determines how offsprings look? There are two possible factors for a trait. Each parent, like a coin, haves two factors for a trait. A scientist named Punnett discover a way to predict how will be the outcome of crossing two different forms of a trait. This method was named Punnett square. There are other methods such as pedigree that are used to trace the history of traits in a family. In pedigrees some individuals are called carriers. A carrier has inherited a factor for a trait but does not show it.
Some inherited traits do not follow the patterns of heredity. There are some dominant factors that do not mask completely the factors for the other form of the trait. This genetic pattern is called incomplete dominance. Heredity is difficult to predict because traits don't always come in two forms.
No hay comentarios:
Publicar un comentario
What method do you thing is better the traditional method ot the new technology? Why?