Alcoholism is not inheritable.
One of the allels for a trait to it's offspring.
Segregation
The unit of heredity that passes on traits from parent to offspring is a gene. Genes are segments of DNA that encode specific instructions for the development and functioning of an organism. They are inherited from parents and determine characteristics such as eye color, blood type, and susceptibility to certain diseases.
If one parent has a dominant trait and and another parent has a recessive trait, then the recessive trait gets hidden while the dominant trait gets shown.
The probability that a parent carrying a dominant trait will pass that trait on is a 50% chance with each pregnancy
You inherent gene from your parent and they give you trait.
100% of the offspring will display the dominant trait because the homozygous dominant parent can only pass on the dominant allele. The offspring will inherit one dominant allele from the dominant parent and one recessive allele from the recessive parent, resulting in a heterozygous genotype expressing the dominant trait.
One parent has a recessive trait. For example: One parent has blood type AB, the other has blood type OO.
It is a dominant genetic trait. If you get a gene for it from either parent, you will have this trait.
Trait
a true breeding plant always produces offspring with the same trait as the parent(s).
An individual can have a maximum of two alleles for one trait, as they inherit one allele from each parent. These alleles can be the same (homozygous) or different (heterozygous) for a specific trait.