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