Topic 3 Key Terms Flashcards
1
Q
Phenotype
A
An organism’s observable characteristics
2
Q
Genotype
A
The 2 alleles present in an organism for a particular gene
3
Q
Heterozygous
A
have 2 DIFFERENT alleles for a particular gene
4
Q
Homozygous
A
have 2 of the SAME alleles for a particular gene
5
Q
Gene
A
piece of DNA containing information about particular trait
6
Q
Allele
A
particular version of a gene
7
Q
Dominant allele
A
An allele that has same effect on the phenotype, whether 1 or 2 copies present
8
Q
Recessive allele
A
An allele only has an effect on the phenotype when 2 copies are present in a homozygous state
9
Q
Co-dominant alleles
A
alleles that jointly affect the phenotype when present together=creates intermediate/combined phenotype
