11.1 Study Guide Flashcards
1
Q
What is the definition of a phenotype?
A
The physical traits of an organism.
2
Q
What is the definition of a genotype?
A
The genes deciding a trait.
3
Q
What is the definition of codominance?
A
A codominant trait is a trait that is a combination of two traits.
4
Q
What is the phenotype ratio for Long hair (A) to short hair (a) is the parents have Aa and aa genes?
A
2/4 long hair : 2/4 short hair
5
Q
What is the definition of homologous?
A
Having all the same genes. (xx, XX)
6
Q
What is the definition of heterozygous?
A
Having two different genes (Xx).
7
Q
What is the genotype ratio of offspring if the two parents have AA and Aa?
A
2/4 AA (homozygous dominant) : 2/4 Aa (heterozygous)
