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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
Endoplasmic Reticulum
B
tRNA
C
DNA
D
Cytoplasm
2) A unit of information about a specific trait (a section of DNA) is called a(n)...
A
gene
B
phenotype
C
allele
D
locus
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
dominant
C
heterozygous
D
homozygous
5) When 2 alleles are different, we say that an individual is ___________ for a trait.
A
dominant
B
heterozygous
C
recessive
D
homozygous
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
homozygous
B
recessive
C
heterozygous
D
dominant
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
dominant
B
heterozygous
C
homozygous
D
recessive
8) Which of the following represents a GENOTYPE?
A
H
B
h
C
Hh
D
Hairy nostrils
9) Which of the following represents a PHENOTYPE?
A
H
B
Hairy nostrils
C
h
D
Hh
10) Which of the following represents a genotype that is homozygous recessive?
A
A
B
AA
C
Aa
D
aa
11) Which of the following represents a genotype that is homozygous dominant?
A
Aa
B
A
C
AA
D
aa
12) Which of the following represents a genotype that is heterozygous?
A
A
B
aa
C
AA
D
Aa
*select an answer for all questions
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