Glencoe Biology

Section 1: Basic Patterns of Human Inheritance

Self-Check Quizzes

1
A recessive genetic disorder affecting mucus and sweat glands is called ____.
A)achondroplasia
B)albinism
C)sickle-cell disease
D)cystic fibrosis
2
A ____ traces the inheritance of a particular trait through generations.
A)karyotype
B)genotype
C)pedigree
D)chromosome map
3
In this pedigree, which family members are carriers of Tay-Sachs?

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A)both parents
B)second and fourth offspring
C)first and second offspring
D)mother only
4
A dominant genetic condition characterized by small body size is called ____.
A)galactosemia
B)achondroplasia
C)Huntington's disease
D)sickle-cell disease
5
Which statement is not true of carriers?
A)They can pass a gene for a recessive disorder.
B)They are heterozygous for a recessive disorder.
C)They express the recessive trait.
D)They have one dominant allele.
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