Genetics : Dominant Trait
Jacey Robustelli
Genetics are the study of heredity. Most of your knowledge came from the work of Gregor Mendel. He was born in 1822. Mendel was a Monk and School teacher. He liked to Monastery garden. He became very interested in pea plants. In his studies he came up with different generations called P1 (First Parents), F1 (First Filial), F2 (Second Filial). The offspring of P1 were called the F1 generation and the offspring of F1 were called the F2 generation.
In the P1 generation both alleles would always be homozygous. But how would you tell the difference. Well Mendel came up with dominant and recessive. If something was dominant one gene blocked out the other pair. When something is recessive it is the blocked gene.
For example dark hair is a dominant trait for humans. If one parent has the gene for dark hair and the other has the gene for light hair the child will have dark hair. All of your traits are chosen by whether or not they are dominant or recessive. Because dominant is always going to overrule recessive.
Source: https://www.education.com/science-fair/article/biology_it-takes/
Source: https://www.education.com/science-fair/article/biology_it-takes/
What about dominance when we are comparing it to Non-Mendelian Genetics? Would that still be the case where dominant overrules the other or is it something different?
ReplyDeleteIs there a possible way of a recessive gene being a dominant gene?
ReplyDeleteWhat if it was two recessive genes instead of one dominant and one recessive?
ReplyDelete