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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
A
B
AB
C
O
D
B
2) What blood types are co-dominant?
A
A and B
B
O and O
C
B and B
D
B and O
3) Which is an example of a co-dominant cross?
A
white feathers
B
purple feathers
C
white feathers with blue tips
D
blue feathers
4) Which would be the result of incomplete dominance of red and white flowers?
A
Both red and white
B
Red
C
White
D
Pink
5) Using incomplete dominance. Cross two purple flowers. R = Red B= Blue. What is the chance of the offspring being blue?
A
75%
B
100%
C
25%
D
50%
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
triangle
B
square
C
star
D
circle
9) How are females represented on a pedigree?
A
star
B
square
C
triangle
D
circle
10) Cross of person with the blood type AB and one with O. What will be the possible outcomes?
A
100% type B
B
50% type A and 50% type B
C
100% type A
D
50% type AB and 50% O
11) Using co-dominance cross a black and white feather chicken (BW) with a black feathered (BB) chicken. What are the possible outcomes?
A
25% white feathers and 75% black feathers
B
50% white feathers and 50% black feathers
C
50% black and white feathers and 50% black feathers
D
75% black feathers 25% white 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
75% pink and 25% white
C
50% red and 50% 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
75% brown and 25% green
B
100% green
C
75% green and 25% brown
D
50% green and 50% brown
15) Which would represent hybrid?
A
rr
B
BB
C
Br
16) Which would represent purebred?
A
Bb
B
BB
*select an answer for all questions
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