Ch 6 Flashcards
Genetics
The study of genes
Trait
A characteristic that is inherited
Purebread
A flower line that has self pollinated itself for years and has no other traits but itself in it
cross
mating of two organisms
Law of segregation
Organisms inherit two copies of each gene, one from each parent
gene
a piece of DNA to provide instructions for to body
Allele
Any alternative forms of a gene
homozygous
two of the same alleles at a specific locus
heterozygous
two different alleles at the same locus
Genome
the material that a organism is made of
Genotype
Any specific type of genes
Phenotype
Physical characteristics in a in an individual organism
Dominant Allele
The more common and powerful allele in an organism
Recessive
An allele that is expressed only two of them are present
Punnet square
A grid system that predicts traits of an organism
Monohybrid cross
The inheritance of only one specific trait
test cross
A cross between organisms that their genotypes are not known
dihybrid cross
A cross between two different traits
Law of independent assortment
Alleles pairs that are separate during meiosis or gamete formation
Probability
The percent or chance that something will happen
