Mendelian genetics

Mendelian genetics - Mendelian Genetics Gene- Single...

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1Mendelian Genetics Gene - Single heritable DNA unit that codes for a specific trait Genotype - the genetic makeup of an individual; this is usually used to refer to the specific alleles found at a locus pertaining to a specific trait. Phenotype- an observable characteristic of an organism; this is derived from interactions between genes at a specific locus (and sometimes multiple loci), as well as environmental interactions. " Each gene is located at a certain area of a specific chromosome known as the gene’s locus " A gene can exist in different forms known as alleles , which code for different forms of a specific trait. - In humans, an individual has two alleles for each trait located on one homologous chromosome obtained from the father and one from the mother. # If the alleles, at a specific locus, both code for same - An allele can be recessive, dominant, co-dominant or incompletely dominant # recessive allele- An allele that seen in only homozygous genotypes for a specific trait # dominant allele- When present
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This note was uploaded on 06/12/2008 for the course BILD 1 taught by Professor Boulanger during the Spring '08 term at UCSD.

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Mendelian genetics - Mendelian Genetics Gene- Single...

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