8.1 Genetics Flashcards
Genotype
The letters that represent alleles in a cross
Phenotype
The physical representation of the genotype
Heterozygous
BIG LETTER small letter
Homozygous
BIG LETTER BIG LETTER or small letter small letter
Ratio
A representation of the number of each allele
Dominant vs Recessive
Dominant traits take priority over recessive, when paired together
Co-dominance
When traits aren’t dominant or recessive and make new traits depending on being heterozygous.
What did Mendel always start with in the first generation P
Pure breeding genetics, homozygous dominant
Test cross
An experimental cross to determine possible genotypes
In the F1 generation what is the distribution?
All heterozygous
In the F2 generation what is the ratio? (in a general sense)
3:1