GENERAL HISTOLOGY

Detailed explanation-1: -A dominant trait will always be expressed in the offspring if the dominant allele is present, even if there is only one copy of it (heterozygous or dominant homozygous, Aa or AA).

Detailed explanation-2: -The most common interaction between alleles is a dominant/recessive relationship. An allele of a gene is said to be dominant when it effectively overrules the other (recessive) allele. Eye colour and blood groups are both examples of dominant/recessive gene relationships.

Detailed explanation-3: -Dominant refers to the inheritance of traits that are typically passed vertically from parent to child where both the parent and the child are affected by the trait or disorder that is related to that gene.

Detailed explanation-4: -Dominantly inherited genetic diseases tend to occur in every generation of a family. Each affected person usually has one affected parent. However, dominant mutations can also happen in an individual for the first time, with no family history of the condition (spontaneous mutation).