Being homozygous for a particular gene means you inherited two identical versions. It’s the opposite of a heterozygous genotype, where the alleles are different. People who have recessive traits, like blue eyes or red hair, are always homozygous for that gene.
Is a homozygous dominant trait?
Homozygous means that the organism has two copies of the same allele for a gene. 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. … People with CF are homozygous recessive.
Is heterozygous dominant trait?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.
Is AA homozygous or heterozygous?
Two dominant alleles (AA) or two recessive alleles (aa) are homozygous. One dominant allele and one recessive allele (Aa) is heterozygous.
What does homozygous wild type mean?
genotype The genetic makeup of an organism. homozygous Having two identical alleles for a particular trait. … wild type An individual having the normal phenotype; that is, the phenotype generally found in a natural population of organisms. mutant An individual having a phenotype that differs from the normal phenotype.
What is a homozygous mutation?
If you’re homozygous for a particular gene, you inherited two of the same alleles. It means your biological parents contributed identical variants. In this scenario, you may have two normal alleles or two mutated alleles. Mutated alleles can result in a disease and will be discussed later.
Is homozygous purebred?
Purebred – Also called HOMOZYGOUS and consists of gene pairs with genes that are the SAME. Hybrid – Also called HETEROZYGOUS and consists of gene pairs that are DIFFERENT. Genotype is the actual GENE makeup represented by LETTERS.