Variation And Inheritance Flashcards
Gametes
Sex cells
Phenotype
Physical characteristics that an organism shows
Genotype
The combination of genes
Alleles
The different forms of a gene
Polygenic inheritance
The interaction of the alleles of several genes
Dominant
More “powerful” allele shown with a CAPITAL letter
Recessive
“Weaker” allele shown with lower case letter
Homozygous
Both alleles the same
True/pure breeding
Like homozygous, produces only one type of allele
Heterozygous
Has two different alleles
P generation
The original generation
F1 generation
The offspring of the P generation
F2 generation
The offspring of the F1 generation
Monohybrid cross
Genetics crosses involving one characteristic
Continuous variation
A wide range of variations between two extremes