Biology Flashcards
1
Q
Homozygous
A
Has 2 identical alleles for a trait
2
Q
Heterozygous
A
Has 2 different alleles for a trait
3
Q
Allele
A
Forms a gene
4
Q
Genotype
A
Genetic makeup (alleles)
5
Q
Phenotype
A
Physical characteristics/ traits / looks
6
Q
Complete Dominance
A
1 allele is dominant over another
7
Q
Co-Dominance
A
Both alleles are dominant Ex: dirty blond hair
8
Q
Incomplete Dominance
A
Neither allele is completely dominant resulting in a 3rd phenotype Ex: Red and White flowers create a pink flower
9
Q
Sex Linked Traits
A
Linked by the X chromosomes
10
Q
Multiple Alleles
A
When more than 2 alleles can code for a gene Ex: 3 alleles - 6 possible combinations
11
Q
Polygenic Traits
A
Many genes that control the same trait Ex: skin / eye / hair etc. color
