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Pedigree Charts
Test Description: Review of pedigrees
Instructions: Answer all questions to get your test result.
1) What does a circle mean?
A
female
B
male
2) A square means
A
female
B
male
3) A horizontal line connecting a male and a female means
A
married
B
sibling
C
son
D
daughter
4) An X linked disease means that the ___________ carries the trait but doesn't show it
A
female
B
male
5) Pedigrees are used to find out the probability of a child having a _______ in a particular family
A
son
B
disorder/disease
C
child
D
daughter
6) Pedigrees are made of symbols that represent...
A
dominant and recessive traits
B
gender (male/female)
C
all of these are correct
D
carriers of disorders/disease
7) Pedigrees are family trees that explain ____________
A
why you act the way you do
B
your genetic history
C
your attitude
8) If the disorder does not show up in every generation, the disorder is _________
A
recessive
B
neither
C
dominant
9) The horizontal row across the pedigree mean that the individuals
A
are in the same generation
B
do not have the disorder
C
all have the disorder
10) A half filled shape means the individual is
A
homozygous recessive- showing the trait
B
heterozygous - a carrier of the trait
C
homozygous dominant= not showing the trait
*select an answer for all questions
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