what is the difference between homozygous dominant?
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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.
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​Autosomal Dominant "Dominant" means that a single copy of the disease-associated mutation is enough to cause the disease. This is in contrast to a recessive disorder, where two copies of the mutation are needed to cause the disease. Huntington's disease is a common example of an autosomal dominant genetic disorder.
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*What is the difference between a dominant and recessive allele? A dominant allele is always expressed or seen. it is in a homozygous (BB) or heterozygous (Bb) pair. A recessive allele is only expressed when in a homozygous pair(bb).
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If the alleles are different, the dominant allele usually will be expressed, while the effect of the other allele, called recessive, is masked. In codominance, however, neither allele is recessive and the phenotypes of both alleles are expressed.
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Incomplete dominance means that neither alleles are dominant so the heterozygous phenotype is somewhere in between the two homozygous phenotypes. Codominance means that both the alleles are present in the phenotype for example a speckled chicken.
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However, a fly that has a normal body color may have the homozygous genotype EE or the heterozygous genotype Ee. ... In its simplest form, a test cross is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype (and phenotype).
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Homozygous means that both copies of a gene or locus match while heterozygous means that the copies do not match. Two dominant alleles (AA) or two recessive alleles (aa) are homozygous. One dominant allele and one recessive allele (Aa) is heterozygous.
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Organisms can be homozygous or heterozygous 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. Heterozygous means that an organism has two different alleles of a gene.
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Codominance and Incomplete dominance are two types of genetic inheritance. Codominance essentially means that no allele can block or mask the expression of the other allele. On the other hand, incomplete dominance is a condition in which a dominant allele does not completely mask the effects of a recessive allele.
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Homozygous vs Heterozygous Homozygous consists of two copies of the same allele that codes for a particular trait. Heterozygous consists of two different copies of alleles that code for a particular trait.
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There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).
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Paternal genes have been found to be more dominant than the maternal ones. Genes from your father are more dominant than those inherited from your mother, new research has shown.
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Yes, AABB is homozygous. Homozygous: An individual with two similar allels for the same gene. Eg.
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Homozygous : Having the same allele at the same locus on both members of a pair of homologous chromosomes. Homologous chromosomes also refers to a genotype consisting of two identical alleles of a gene for a particular trait. An individual may be homozygous dominant (AA) or homozygous recessive (aa).
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A dominant allele is always expressed, even if one copy is present. ... You only need one copy of this allele to have brown eyes. Two copies will still give you brown eyes. A recessive allele is only expressed if the individual has two copies and does not have the dominant allele of that gene.
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What is the difference between dominant and recessive traits? Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists. Recessive traits are expressed only if both the connected alleles are recessive.
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Dominant traits are traits that will be expressed even if there is one of them. Recessive traits must have both parents give the same recessive trait for it to be expressed. heterozygous alleles are when a pair of alleles have a different version of a certain trait.