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Science Online
Question | Answer |
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Gene definition | a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring. |
Allele definition | one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. |
Dominant definition | most important, powerful, or influential |
Recessive definition | relating to or denoting heritable characteristics controlled by genes that are expressed in offspring only when inherited from both parents, i.e., when not masked by a dominant characteristic inherited from one parent. |
Phenotype definition | the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment. |
Genotype definition | the genetic constitution of an individual organism. |
Homozygous recessive definition | 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. |
Homozygous dominant definition | Heterozygous means that an organism has two different alleles of a gene. ... People with CF are homozygous recessive. |
Heterozygous definition | having two different alleles of a particular gene or genes. |