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Quiz: Pedigrees v3
By Marc Serrano
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Last updated almost 7 years ago
8 questions
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Question 1
1.
Which of the following individuals is a carrier?
II-6
I-1
II-2
II-1
Question 2
2.
What are the clues that a person is a carrier? (Choose ALL that apply)
at least one of the parents expresses the recessive trait
they have two dominant alleles
they are heterozgyous
both parents express the dominant trait
one of the offspring expresses the trait
don't show the trait
Question 3
3.
For a single gene, how many alleles does each parent pass on to each offspring?
Question 4
4.
The pedigree below tracks the appearance of a recessive trait:
Match each individual on the left with the correct genotype on the right.
I-2
II-2
II-3
II-1
III-1
III-6
Definitely homozygous dominant
Definitely heterozygous
Definitely homozygous recessive
Could be homozygous dominant or heterozygous
Question 5
5.
How is II-4 related to III-2?
nephew
cousin
uncle
niece
aunt
Question 6
6.
How many affected females are in this pedigree?
Question 7
7.
This pedigree tracks hemophelia in a family. How many of I-2's daughters have hemophelia?
Question 8
8.
How many children did I-1 and I-2 have?