AP Bio Ch 12 Chromosome & Genes

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