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1
How is it possible that there are four times as many kinds of mRNA as there are genes in the human genome?
A)Genes are distributed evenly over the genome and not all are used.
B)Human genes are fragmented and use alternative splicing.
C)The human genome contains special introns that code for proteins.
D)The human genome contains bacterial genes that are not accounted for.
E)None of these is correct.
2
How much of the human genome is actual protein-encoding genes?
A)1%
B)3%
C)95%
D)20%
E)45%
3
Microarray gene chips will eventually be used to
A)screen for mutations leading to cancer.
B)identify carriers of genetic diseases.
C)identify probable behavioral traits.
D)Both 1 and 2 are correct.
E)1, 2, and 3 are correct.
4
The new area of science that seeks to catalog and analyze every protein in the human body in order to help understand the human genome is called
A)bioinformatics.
B)proteomics.
C)molecular genetics.
D)genomics.
E)None of these is correct.
5
Which of these is not a type of noncoding human DNA?
A)Structural DNA
B)Repeated sequences
C)Constitutive heterochromatin
D)None of these. All are types of noncoding DNA.





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