Question: what is the difference between homozygous dominant heterozygous and homozygous recessive?
Answer: An organism can be homozygous dominant, if it carries two copies of the same dominant allele, or homozygous recessive, if it carries two copies of the same recessive allele. Heterozygous means that an organism has two different alleles of a gene. ... People with CF are homozygous recessive.