Diffrence between homozygous and heterozygous

Answer 1

They refer to the alleles in a genotype. For the basics of genetics, we can say that each allele is either dominant or recessive. Dominant is represented by an uppercase letter, and recessive a lowercase. If the genotype is AA, it is homozygous dominant. If it is aa it is homozygous recessive. If it is Aa, it is heterozygous. Simply, homozygous means that both of the alleles are the same and heterozygous means it has one of each allele.

Answer 2

homozygous genotypes mean that it has two of the same alleles of the one gene

hetrozygous genotypes mean that it has two different alleles of the one gene

i find an example easier.

lets use fur color, say black fur (B) is dominant to the allele for brown fur (b)

so a dog with brown fur would have the genotype (bb) which would be homozygous, as would a dog with black fur with the genotype (BB)

a dog with black fur could also have the genotype (Bb) which is hetrozygous.

Answer 3

Diffrence between homozygous and heterozygous?

Answer 4

Homozygous contains two of the same alleles, whether they be recessive (xx) or dominant (XX).

Heterozygous contains one of each allele (Xx).