WorksheetsGenetics Test Review
Total questions: 20
Worksheet time: 22mins
heterozygous
Bb
BB
bb
homozygous dominant trait
Bb
BB
bb
homozygous recessive trait
BB
bb
Bb
Brown eyes are dominant to blue eyes. Cross heterozygous brown eyes with homozygous blue eyes.
Ee x Ee
EE x ee
Ee x ee
Ee x EE
Brown hair is dominant to red hair. Cross homozygous brown hair with homozygous red hair.
Hh x Hh
HH x He
Hh x hh
HH x hh
Round peas are dominant to wrinkled peas. Cross heterozygous round pea with heterozygous round pea.
Rr x Rr
RR x rr
Rr x rr
Rr x RR
Codominance
Brown cows and white cows are both dominant. Cross a brown cow with a spotted cow.
BB x WW
BB x BW
BW x BW
BB x BB
Incomplete Dominance
Red flower are dominant to white flowers. Cross a red flower with a pink flower.
RR x Rr
RR x rr
Rr x Rr
Rr x rr
Brown eyes are dominant to green eyes. What is the percent chance a child will have green eyes if mom is heterozygous brown eyes and dad is also heterozygous for brown eyes.
0%
25%
50%
75%
100%
Blonde hair is dominant to red hair. What is the percent chance a child will have red hair if the mom is heterozygous for blonde hair and dad is homozygous for red hair.
0%
25%
50%
75%
100%
Tall is dominant to short. What is the chance will be taller than the average height is mom is homozygous short and and dad is homozygous tall?
0%
25%
50%
75%
100%
Codominance
A black chicken and white chicken are both dominant. What is the percent chance a baby chick will be spotted if the dad is a solid black chicken and the mom is a spotted chicken?
0%
25%
50%
75%
100%
Incomplete Dominance
A red flower is dominant to an orange flower. What percentage chance will the new flowers be orange if one female flower is orange and the male flower is orange?
0%
25%
50%
75%
100%
What type of blood will a baby have if mom is type AB and dad is homozygous for B blood?
Only type AB
Only type B
Type AB or type B
Type A or type B
What type of blood will a baby have if mom is type O and dad is heterozygous for type A blood?
only type O
type O or type A
type A or type AB
only type A
What type of blood can a baby have if mom is heterozygous type B and dad is heterozygous type A?
all blood types
only type O
type AB and O
type A or type B
There are ___ males and ___ females in the pedigree shown.
10; 5
4; 8
8; 8
7; 6
How many marriages are shown in the pedigree?
4
5
2
1
Which of the following will be in box number 3?
AA
Aa
aa
Which of the following will be in box 4?
AA
Aa
aa
