For an X-linked recessive disease where the father is unaffected: a) An affected father cannot pass the disease mutation on to his daughters. b) all affected mothers will be heterozygous at the trait locus. c) a homozygous affected mother will have only affected male offspring. d) a homozygous affected mother will have only affected female offspring. e) if a homozygous affected mother mates with an unaffected father, 75% (on average) of the male offspring will be affected.

Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter4: Pedigree Analysis In Human Genetics
Section4.7: Non-mendelian Inheritance: Maternal Mitochondrial Genes
Problem 2EG: Which members of the pedigree could have been carriers, and which might have been the source of the...
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For an X-linked recessive disease where the father is unaffected:

a) An affected father cannot pass the disease mutation on to his daughters.

b) all affected mothers will be heterozygous at the trait locus.

c) a homozygous affected mother will have only affected male offspring.

d) a homozygous affected mother will have only affected female offspring.

e) if a homozygous affected mother mates with an unaffected father, 75% (on average) of the male offspring will be affected.

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