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Quiz: Pedigrees v2
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-2
II-6
I-1
II-1
Question 2
2.
How is III-2 related to II-4?
uncle
cousin
nephew
aunt
niece
Question 3
3.
What are clues that a trait is dominant? (Choose ALL that apply)
you can be a carrier for the trait
you can be heterozygous and still be able to express the trait
shows up more often
you cannot be a carrier: you either have it or you don't
you must be homozygous in order to express the trait
can skip generations
Question 4
4.
How many carriers are in this pedigree?
Question 5
5.
How many children did I-1 and I-2 have?
Question 6
6.
This pedigree tracks hemophelia in a family. How many of II-2's sons have hemophelia?
Question 7
7.
For a single gene, how many alleles does each parent pass on to each offspring?
Question 8
8.
The pedigree below tracks the appearance of a recessive trait:
Match each individual on the left with the correct genotype on the right.
I-1
II-6
II-3
II-5
II-4
III-6
Definitely homozygous dominant
Definitely heterozygous
Definitely homozygous recessive
Could be homozygous dominant or heterozygous