Two biology questions?

1. How does a geneticist use pedigrees?


a. to create genetic crosses


b. to replicate identical strings of DNA


c. to prove that sex-linked traits are caused by codominant alleles


d. to trace the inheritance of traits over generations of families





5. Sex-linked genes are genes on


a. the X chromosome only.


b. the Y chromosome only.


c. two dominant alleles for a trait.


d. more than two alleles for a trait.

Two biology questions?
I concur. d and a.
Reply:1. D


5. A








Im about 70% sure on Question 5, but 100% on Question 1.

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