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Genetics
Test Description: Genetics
Instructions: Answer all questions to get your test result.
1) Which of the following would be homozygous?
A
bb
B
BB
C
Neither
D
Both
2) Which of the following would heterozygous?
A
Bb
B
None of the above.
C
bb
D
BB
3) What is the structure that contains a cells genetic material and determines an organisms trait?
A
Chromosome
B
Genotype
C
Purebred
D
Hybrid
4) What is the physical appearance for a trait?
A
Allele
B
Genotype
C
Phenotype
D
Gen
5) How many tall pea plants would be expected with a cross between 2 heterozygous (Tt) pea plants?
A
75%
B
0%
C
50%
D
25%
6) How many tall plants would be expected if a hybrid tall plant is crossed with a short plant(tt)?
A
0%
B
25%
C
50%
D
75%
7) The allele that is hidden if dominant is present..
A
Dominant
B
Recessive
C
Neither
D
Both
8) What is the basic unit of heredity, contains DNA?
A
Homozygous
B
Gene
C
Genotype
D
Phenotype
9) What percent of alleles does each parent contribute to their offspring?
A
50%
B
0%
C
75%
D
25%
10) If 2 homozygous recessive plants are crossed, how many tall plants would be expected?
A
0%
B
50%
C
100%
D
25%
*select an answer for all questions
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