Among Native Americans, two types of earwax (cerumen) are seen, dry and sticky. A geneticist studied theinheritance of this trait by observing the types of offspring produced by different kinds of matings. Heobserved the following numbers:OffspringParents Number of mating pairs Sticky DrySticky × sticky 10 32 6Sticky × dry 8 21 9Dry × dry 12 0 42a. How is earwax type inherited?b. Why are no 3:1 or 1:1 ratios present in the datashown in the chart?
Among Native Americans, two types of earwax (cerumen) are seen, dry and sticky. A geneticist studied theinheritance of this trait by observing the types of offspring produced by different kinds of matings. Heobserved the following numbers:OffspringParents Number of mating pairs Sticky DrySticky × sticky 10 32 6Sticky × dry 8 21 9Dry × dry 12 0 42a. How is earwax type inherited?b. Why are no 3:1 or 1:1 ratios present in the datashown in the chart?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Among Native Americans, two types of earwax (cerumen) are seen, dry and sticky. A geneticist studied the
inheritance of this trait by observing the types of offspring produced by different kinds of matings. He
observed the following numbers:
Offspring
Parents Number of mating pairs Sticky Dry
Sticky × sticky 10 32 6
Sticky × dry 8 21 9
Dry × dry 12 0 42
a. How is earwax type inherited?
b. Why are no 3:1 or 1:1 ratios present in the data
shown in the chart?
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