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You and your colleagues are constructing a pedigree for a patient with cystic fibrosis. The individual's brother has also been diagnosed with cystic fibrosis. How would this brother be represented in the pedigree?
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
The scientific study of heredity is called
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
A _______________ is a chart or family tree that tracks which members of a family have a particular trait.
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
If a human is a girl, her sex chromosomes are:
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
The trait that is hidden by the presence of an overpowering trait is:
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
How many pairs of chromosomes do humans have?
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
A man carrying the allele for Huntington's disease marries a woman who is homozygous recessive for the allele. What is the probability that their offspring will develop Huntington's disease?
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
Which alleles indicate an organism that is hybrid for a trait?
pedigree
23
recessive
50%
Bb
XX
shaded square
genetics
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