13 Flashcards
locus
Location of a gene on a chromosome
homozygous
Having identical alleles of a gene
heterozygous
Having two different alleles of a gene
genotype
The particular set of alleles carried by an individual
phenotype
An individual’s observable traits
Mendel’s Law of Segregation
The two members of each pair of genes on homologous chromosomes end up in different gametes during meiosis
monohybrid cross
Breeding experiment in which individuals identically heterozygous for one gene are crossed
(PP x pp)(Pp x Pp)(pp x Pp)….
dihybrid cross
Breeding experiment in which individuals identically heterozygous for two genes are crossed
(PpTt x PpTt)
law of independent assortment
During meiosis, members of a pair of genes on homologous chromosomes get distributed into gametes independently of other gene pairs
incomplete dominance
he heterozygous phenotype is intermediate between the two homozygous phenotypes
epistasis
Effect in which a trait is influenced by the products of one or more genes
(lab dogs) (have to have eyes to make them a color)
continuous variation
In a population, a range of small differences in a shared trait
