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Punnet Squares Practice - Level 1
Test Description: Practice your Punnet squares practice!
Instructions: Answer all questions to get your test result.
1) Long hair (L) is dominant over short hair (l). If you cross LL x Ll, what percent of the offspring will have the LL genotype?
A
100%
B
0%
C
25
D
50%
2) Long hair (L) is dominant over short hair (l). If you cross LL x Ll, what percent of the offspring will have short hair?
A
0%
B
100%
C
25%
D
50%
3) Long hair (L) is dominant over short hair (l). If you cross Ll x Ll, what percent of the offspring will have long hair?
A
0%
B
50%
C
100%
D
75%
4) Long hair (L) is dominant over short hair (l). If you cross Ll x Ll, what percent of the offspring will have the genotype ll?
A
50%
B
100%
C
25%
D
75%
5) Black hair (B) is dominant over white hair (b). If you cross a homozygous black haired individual (BB) with a homozygous white haired individual (bb), what percent of their offspring will be black?
A
100%
B
75%
C
25%
D
50%
6) Black hair (B) is dominant over white hair (b). If you cross a heterozygous black haired individual (Bb) with a homozygous white haired individual (bb), what percent of their offspring will be black?
A
100%
B
50%
C
75%
D
25%
7) Which of the following Punnet squares will give you offspring with 50% red flowers and 50% white flowers?
A
Rr x rr
B
RR x Rr
C
RR x rr
D
Rr x Rr
8) Which of the following Punnet squares will give you offspring with 75% red flowers and 25% white flowers?
A
RR x rr
B
Rr x Rr
C
RR x Rr
D
Rr rr
9) Which of the following Punnet squares will result in all homozygous offspring?
A
RR x rr
B
RR x Rr
C
rr x rr
D
Rr x Rr
10) Which of the following Punnet squares will result in all heterozygous offspring?
A
rr x rr
B
RR x rr
C
Rr x Rr
D
Rr x rr
*select an answer for all questions
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