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Genetics Test Review
Test Description: Genetics Test Review
Instructions: Answer all questions to get your test result.
1) What blood type is recessive?
A
AB
B
B
C
O
D
A
2) What blood types are co-dominant?
A
O and O
B
B and O
C
A and B
D
B and B
3) Which is an example of a co-dominant cross?
A
white feathers with blue tips
B
purple feathers
C
white feathers
D
blue feathers
4) Which would be the result of incomplete dominance of red and white flowers?
A
White
B
Red
C
Pink
D
Both red and white
5) Using incomplete dominance. Cross two purple flowers. R = Red B= Blue. What is the chance of the offspring being blue?
A
25%
B
50%
C
75%
D
100%
6) In pedigrees what would the Genotype of a half shaded circle be?
A
bb
B
BB
C
Bb
7) In pedigrees what does a half shaded square or circle stand for?
A
has the trait
B
carrier of the trait
C
does not have the trait
8) How are males represented on a pedigree?
A
star
B
triangle
C
circle
D
square
9) How are females represented on a pedigree?
A
square
B
circle
C
star
D
triangle
10) Cross of person with the blood type AB and one with O. What will be the possible outcomes?
A
100% type A
B
50% type A and 50% type B
C
50% type AB and 50% O
D
100% type B
11) Using co-dominance cross a black and white feather chicken (BW) with a black feathered (BB) chicken. What are the possible outcomes?
A
50% white feathers and 50% black feathers
B
25% white feathers and 75% black feathers
C
75% black feathers 25% white feathers
D
50% black and white feathers and 50% black feathers
12) Using incomplete dominance. Cross two pink flowers. R = red and W = white. What would the offspring look like?
A
25% red 25% white and 50% pink
B
50% red and 50% white
C
75% pink and 25% white
D
75% red and 25% white
13) In a pedigree what would the genotype be of a person that has a recessive trait and the box is shaded in?
A
rr
B
Rr
C
RR
14) Cross a heterzygous male and a female with green eyes. Green eyes = g Brown eyes= Gg What color eyes will the offspring have?
A
50% green and 50% brown
B
75% brown and 25% green
C
100% green
D
75% green and 25% brown
15) Which would represent hybrid?
A
Br
B
rr
C
BB
16) Which would represent purebred?
A
BB
B
Bb
*select an answer for all questions
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