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Genetics 3
Test Description: Genetics review
Instructions: Answer all questions to get your test result.
1) Organisms with two different alleles for a trait are said to be
A
homozygous
B
heterozygous
C
recessive
D
purebred
2) Which genotype below could be considered homozygous recessive?
A
tt
B
Pp
C
TtPp
D
TT
3) Which genotype below would be considered Homozygous dominant
A
PPYy
B
YYGG
C
YgHh
D
nnmm
4) A Heterozygous long tailed mermaid is crossed with a Homozygous long tailed mermaid. What percentage of the offspring will be short tailed?
A
75%
B
0%
C
50%
D
25%
5) A Heterozygous long tailed mermaid is crossed with a Homozygous long tailed mermaid. What percentage of the offspring will be long tailed?
A
100%
B
50%
C
0%
D
25%
6) If a pea plant was heterozygous for round, yellow peas was crossed with a plant that was homozygous for round and heterozygous for yellow peas, how many different phenoytes would the offspring have?
A
4
B
16
C
6
D
2
7) Which of the following is NOT a phenotype?
A
White flower
B
Purple flower
C
PpTt
D
Long tailed
8) Which of the following is NOT a genotype?
A
Pp
B
TtBb
C
Purple flower
D
TT
9) Suppose purple(P) is dominant to white (p). What would be all the possible genotype combinations for JUST purple flowers?
A
Pp, PP
B
PP
C
Pp, PP, pp
D
Pp, pp
10) Suppose purple(P) is dominant to white (p) and Round (R) is dominant to wrinkled (r). What would be all the possible genotype combinations for JUST purple flowers?
A
pp
B
PP, Pp, RR, Rr
C
RR, PP
D
PP, Pp
*select an answer for all questions
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