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Dominant alleles are always expressed in the organism, while recessive traits tend to be expressed only when the dominant allele is not present. The relationship between dominant and recessive genes is described by the L... More »

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The terms "dominant" and "recessive" are used to describe the phenotypic expression of certain traits or characteristics an individual possesses and not the genes themselves. In humans, each gene has two copies, or allel... More »

www.reference.com Science Biology Molecular Biology & DNA

A homozygote is an individual organism with two copies of the same allele that determines a specific trait, while a heterozygote has a copy of two different alleles for the same trait. Alleles are alternative forms of ge... More »

www.reference.com Science Biology Molecular Biology & DNA
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Dominant alleles are inherited genetic instructions that hide the presence of contrasting instructions. The dominance of these instructions is observable in the physical traits of the organism. More »

www.reference.com Science Biology Molecular Biology & DNA

Genes are distinct portions of an organism’s DNA that correspond with a specific trait, while alleles are different versions of a given gene. All alleles are genes, but not all genes occur as multiple alleles. More »

www.reference.com Science Biology Molecular Biology & DNA

The terms "dominant" and "recessive" are used to describe the phenotypic expression of certain traits or characteristics an individual possesses and not the genes themselves. In humans, each gene has two copies, or allel... More »

www.reference.com Science Biology Molecular Biology & DNA

Cloning is the process used to create an exact genetic copy of an organism while selective breeding is the process used to produce particular characteristics and traits in organisms. Some types of cloning can occur natur... More »

www.reference.com Science Biology Molecular Biology & DNA