Unit 1 Flashcards
1
Q
Explain chromosomes
A
XX is female XY is male
2
Q
Explain difference between phenotype and genotype
A
Phenotype is physical appearance and genotype is the genetic makeup
3
Q
What is a sex linked trait
A
A trait that is carried on the x chromosome
4
Q
What is polygenic trait
A
A trait that is controlled by many genes ex. height, hair color, eye color
5
Q
What is autosomal trait
A
A trait that is carried on any chromosome besides the x or y
6
Q
What is incomplete dominance
A
Blend of the two phenotypes ( hetrozygoues)
7
Q
What is codiminance
A
Mixture of alleles in the phenotype
8
Q
What is simple dominance
A
Dominant allele masks the recessive alele
9
Q
What is simple recessive
A
Disorders usually occur
10
Q
What is epigenetics?
A
Changes determined by the environment
