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: Parents Number of mating pairs Offspring
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 there no 3:1 or 1:1 ratios in the data shown in the chart?

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

having untested DNA samples

Explanation:

Having untested DNA sample can be considered as the negative consequences of the using the DNA technology. The results of the DNA technology are accepted worldwide in the criminal justice system, in paternity and maternity disputes, and in identification of the missing person. Keeping the untested DNA sample can make the sample useless. Also making report without applying the DNA technology and only using the presumptive test can make the results unconfirmatory.