Normal Phenotypic Ratios Flashcards
1
Q
What are the three types of crosses in phenotypic ratios?
A
monohybrid cross
dihybrid cross
codominant
2
Q
What is the parents in monohybrid cross?
A
homozygous dominant x homozygous dominant
e.g. TT x tt
3
Q
What is the F1 phenotypic ratiio for monohybrid cross?
A
100% heterozygous
Tt
4
Q
What is the f2 phenotypic ratio for monohybrid cross?
A
3:1
5
Q
What is the parents for a dihybrid cross?
A
homozygous dominant x homozygous recessive
TTRR x ttrr
6
Q
What is the f1 phenotypic ratio for dihybrid cross?
A
100% heterozygous
TtRr
7
Q
What is the f2 phenotypic ratio for dihybrid cross?
A
9:3:3:1
8
Q
What is codominant parents?
A
homozygous cominant x homozygous dominant
9
Q
What is the f1 pehnotpyic ratio for codimnant?
A
100% heterozyous
10
Q
What is the f2 phenotypic ratio for codominant?
A
1:2:1
