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Genetics Review #2
Test Description: Here is another study option. Have fun!!
Instructions: Answer all questions to get your test result.
1) Which is an example of a genotype for brown eyes which is dominant?
A
BB
B
both BB and Bb
C
brown eyes
D
Bb
2) Which is an example of a genotype for blue eyes which is recessivet?
A
blue eyes
B
BB
C
Bb
D
bb
3) Which is an example of a heterozygous genotype?
A
bb
B
Bb
C
BB
D
brown eyes
4) If you have a child that has brown hair, but your punnett square has 2 Bb boxes and 2 bb boxes, what is the % chance your next child will have brown hair?
A
75%
B
50%
C
25%
D
0%
5) Which is an example of a homozygous dominant genotype?
A
tt
B
Tt
C
TT
D
both TT and tt
6) If you have one plant that is pure green and the other plant is pure yellow, what is the % chance the next generation of plants will be green?
A
25%
B
50%
C
0%
D
100%
7) If you have two hybrid greed plants, what is the % chance of having homozgous yellow plants the next generation?
A
25%
B
100%
C
50%
D
0%
8) If I had a pure dominant and a pure recessive, what is the chance the offspring will be pure dominant?
A
25%
B
50%
C
0%
D
100%
9) Which is a recessive heteorzygous genotype?
A
AA
B
Impossible
C
aa
D
Aa
10) Which is a hybrid phenotype? L = long l = short
A
long eyelashes
B
Ll
C
LL
D
ll
*select an answer for all questions
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