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Genetics Checkpoint Quiz 1
Test Description: Quarter 3 Checkpoint quiz 1
Instructions: Answer all questions to get your test result.
1) If an organism has two different genes for a trait, it is this trait that is shown.
A
Dominant
B
Homozygous
C
Allele
D
Genotype
2) An organism that has two identical traits (ex. aa)
A
Homozygous
B
Dominant
C
Recessive
D
Genotype
3) What a person’s genes, or DNA, look like
A
Phenotype
B
Meosis
C
Genotype
D
Mitosis
4) The trait for being tall is dominant to being short. For this situation, use either “T” or “t.” Which letter would be used to represent the tall trait? ________________
A
t
B
T
5) A tall woman (Genotype: Tt) and a short man (Genotype: tt) have children. Complete the Punnett Square on scratch paper and answer this question. What percentage of the children ends up being TALL? ____________________
A
50%
B
100%
C
25%
D
75%
6) A tall woman (Genotype: Tt) and a tall man (Genotype: Tt) have children. Complete the Punnett Square on scratch paper and answer the question. What percentage of their children ends up being TALL? _____________________
A
75%
B
50%
C
100%
D
25%
7) An alternative form of a gene is called...
A
Meiosis
B
Heredity
C
Allele
D
Dominant
8) The observable characteristic or physical appearance of an organism is called...
A
Allele
B
Phenotype
C
Genotype
D
Homozygous
9) An organism that has one dominant and one recessive trait (ex. Aa)
A
Prophase
B
Heterozygous
C
Genotype
D
Homozygous
10) The passing of traits from parents to offspring
A
Dominant
B
Meiosis
C
Heredity
D
Genotype
*select an answer for all questions
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