Catégories : Tous - phenotype - gene

par Jessica McMaster Il y a 6 années

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Genotype and Phenotype

Genotype refers to the specific set of genes within an organism's DNA that influence various traits. These genes, inherited from parent to offspring, include dominant and recessive alleles.

Genotype and Phenotype

Genotype and Phenotype

Important Definitions

Recessive: A segment of DNA information that is used to make chromosomes gene that can be masked by a dominant gene
Dominant: A segment of DNA information that is used to make chromosomes that is expressed in the phenotype over a recessive allele
Gene: A unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring
Allele: One of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome

Main topic

Identifying the Phenotype of an Individual Given the Genotype

Carriers have the dominant/recessive genotype for a given gene, so they only show the phenotype caused by the dominant version of that gene

Differences between Genotype and Phenotype

The phenotype is influenced by the genotype
Phenotype determined by both genetic make-up and environmental influences
The phenotype of an organism is the observable physical or biochemical characteristics of an organism
Phenotype is the physical expression, or characteristics, of that trait