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Genetics CQE3
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) If you crossed a tall plant TT and short tt, how many would be expected to be tall?
A
100%
B
0%
C
50%
D
25%
2) offspring that result from true-breeding parents of different traits are said to be
A
all homozygous dominant
B
hybrids
C
all recessive
D
are also true-breeding
3) In the P generation, a tall plant is crossed with a short plant, what is the probability that an F2 plant will be tall?
A
0%
B
100%
C
25%
D
75%
4) Organisms with 2 identical alleles for a trait are said to be
A
hybrids
B
heterozygous
C
recessive only
D
homozygous
5) organisms with 2 different alleles for a trait are said to be
A
homozygous
B
purebreds
C
heterozygous
D
dominant species
6) What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance?
A
principle of mitosis
B
principle of dominance
C
principle of independent assortment
D
principle of genetics
7) This shows an organisms genetic makeup
A
genotype
B
principle of independent assortment
C
phenotype
D
principle of dominance
8) If you crossed a blue plant BB with a white plant bb, how many will be blue?
A
50%
B
0%
C
25%
D
100%
9) A dominant allele will always show over a recessive allele. This is which principle?
A
principle of dominance
B
principle of genetics
C
principle of independent assortment
D
principle of alleles
10) A white plant ww is crossed with another white plant ww. What percentage will be white?
A
0%
B
100%
C
25%
D
50%
*select an answer for all questions
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