Question

What is homozygous dominant

Answer 1

The organism carries two copies of the same dominant allele. We normally indicate it by two capital letters: PP

Homozygous recessive would be two copies of the same recessive allele - which we normally indicate by small letters: pp

Heterozygous would be one copy of each: Pp

Answer 2

It involves punnet inherited traits and punnet squares
an example of homozygous dominant would be AA
an example of heterozygous would be Aa
an example of homozygous reccesive would be aa
when an organism is homozygous dominant for a certain trait it means that they can only pass down the dominant trait to their offspring and their offspring will display the dominant trait