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Genetics
Test Description: Basic terminology Review
Instructions: Answer all questions to get your test result.
1) Different forms of a trait (blue eyes, brown eyes, etc) are called:
A
variables
B
alleles
C
homozygotes
D
genotypes
2) The combination of letter symbols used to represent your genes for a trait (ex. AA) is your:
A
punnett square
B
pedigree
C
phenotype
D
genotype
3) The physical appearance of an individual is their:
A
phenotype
B
genotype
C
allele
D
pedigree
4) If you have the combination Aa for a trait, then you are _____ for that trait.
A
heterozygous
B
homozygous
C
phenotypic
D
allelic
5) How would we genetically represent a male individual who possesses a sex-linked trait?
A
XY*
B
XX
C
X*X
D
X*Y
6) In a pedigree _______ represent males, and _______ represent females.
A
circles, squares
B
squares, circles
C
triangles, circles
D
squares, triangles
7) A family tree diagram that is used to track traits through several generations is known as a:
A
genotype
B
punnett square
C
pedigree
D
phenotype
8) When a cell receives too many or too few chromosomes during meiosis, ____ has occurred.
A
erythroblastosis fetalis
B
mitosis
C
phenylketoneuria
D
nondisjunction
9) Sex-linked traits are:
A
always fatal.
B
most commonly seen in males.
C
found only in females.
D
always carried by males, but not shown.
10) The sex of an offspring is determined by:
A
the mother
B
the day of the week
C
both parents
D
the father
*select an answer for all questions
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