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Genetics Review
Test Description: FHS Biology
Instructions: Answer all questions to get your test result.
1) Where is our entire genetic code located?
A
DNA
B
Endoplasmic Reticulum
C
tRNA
D
Cytoplasm
2) A unit of information about a specific trait (a section of DNA) is called a(n)...
A
gene
B
allele
C
locus
D
phenotype
3) A certain form of a gene represented by ONE LETTER (a or A for example) is called a(n)
A
locus
B
gene
C
allele
D
phenotype
4) When 2 alleles are the same, we say that an individual is ___________ for a trait.
A
recessive
B
homozygous
C
dominant
D
heterozygous
5) When 2 alleles are different, we say that an individual is ___________ for a trait.
A
heterozygous
B
homozygous
C
recessive
D
dominant
6) An allele that we use a capital letter to represent, which RULES over other in giving it's trait is referred to as…
A
recessive
B
dominant
C
homozygous
D
heterozygous
7) An allele that we use a lower case letter to represent, which gets overpowered if paired up with a dominant one is referred to as…
A
homozygous
B
heterozygous
C
recessive
D
dominant
8) Which of the following represents a GENOTYPE?
A
H
B
Hh
C
Hairy nostrils
D
h
9) Which of the following represents a PHENOTYPE?
A
h
B
H
C
Hairy nostrils
D
Hh
10) Which of the following represents a genotype that is homozygous recessive?
A
Aa
B
A
C
aa
D
AA
11) Which of the following represents a genotype that is homozygous dominant?
A
A
B
AA
C
Aa
D
aa
12) Which of the following represents a genotype that is heterozygous?
A
AA
B
Aa
C
A
D
aa
*select an answer for all questions
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