Vocab Genetics Flashcards
Inheritance determined by the interaction of two or more pairs of genes
Polygenic
The hypothesis that a gamete receives only one member of a pair of genes
Principle of segregation
The different forms of genes for a particular trait
Allele
The gene that is not expressed when a dominant gene is present
Recessive
The passing of traits from parents to their young
Heredity
An organism in which the two genes for a given trait are alike
Homozygous
The genetic makeup of an organism
Genotype
Chromosomes other than sex chromosomes
Autosomes
A chart that shows possible combinations of genes among offspring of a cross
Punnet square
A genetic cross that involves one pair of contrasting traits
Monohybrid
The outward appearence of an organism
Phenotype
An organism in which the two genes for a given trait are different
Heterozygous
A genetic cross involving two different sets of traits
Dihybrid
A gene that prevents the expression of another gene
Dominant
The branch of biology that deals with heredity
Genetics
Previous events do not affect the probability of later occurancesof the same event
Rule of independent events
The occurence of a number of genes on the same chromosome
Linkage
A group of organisms that produce young that have only one form of trait in each generation
Pure line
