Unit Test — Unit test Answers
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Which symbol is used to label a male that expresses a sex-linked disorder on a pedigree?
A
An empty circle.
B
A half-filled circle.
C
An empty square.
D
A filled square.
22
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The offspring of a particular cross are 100 percent heterozygous for the trait of plant height. What were the most likely genotypes of the parents?
A
Tt ´ ttB
Tt ´ TtC
tt ´ ttD
TT ´ tt23
Which includes the physical characteristics of an organism?
A
geneB
alleleC
genotypeD
phenotype24
Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. Based on the pedigree that is shown, which describes John?
A
carrier for hemophiliaB
expresses hemophiliaC
does not have hemophiliaD
expresses hemophilia and died of complications25
What is the purpose of using a pedigree?
A
to study the causes of traits that are acquired during an organism’s lifeB
to understand patterns of inheritance in organismsC
to determine mating patterns in organismsD
to identify traits that are acquired during an organism’s lifeDid you find these answers helpful?
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