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AP Bio Ch 12 Chromosome & Genes

13 Questions  I  By Rnreda
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1.  In chromosome mapping, one map unit represents
A.
B.
C.
D.
E.
2.  What is the hereditary cause of type AB blood?
A.
B.
C.
D.
E.
3.  Marfan's disease in humans, with its numerous effects, is an example of
A.
B.
C.
D.
E.
4.  Skin color in humans, caused by several genes at several loci, is an example of
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B.
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D.
E.
5.  Trisomy occurs when a chromosome, usually an autosome, is lost during meiosis.
A.
B.
6.  A small number of recombinants will occur due to crossing over between linked genes on homologous chromosomes.
A.
B.
7.  A classical example of codominance is
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B.
C.
D.
E.
8.  Different pairs of recessive alleles can interfere with a biochemical pathway and thus produce albinism.
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B.
9.  A classical example of epistasis is
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B.
C.
D.
E.
10.  What causes Down syndrome?
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B.
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D.
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11.  A human male has ____ chromosomes with ____ sex chromosomes.
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B.
C.
D.
E.
12.  A classical example of multiple alleles is
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B.
C.
D.
E.
13.  In a case of incomplete dominance, the phenotypic ratio of the F2 generation is the same as the genotypic ratio.
A.
B.
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