1. For a couple of decades, biologists knew that the nucleus…

1. For a couple of decades, biologists knew that the nucleus contained DNA and proteins. The prevailing opinion was that the genetic material was proteins, and not DNA. The reason for this belief was that proteins are more complex than DNA. What was the basis of this thinking?

1.Sickle-cell anemia is a recessively inherited disorder.  I…

1.Sickle-cell anemia is a recessively inherited disorder.  If Stella is a carrier (heterozygote) of this disorder based on Mendel’s Law of Segregation she could produce which of the following gametes?  (use the letter S(s) to denote the sickle-cell alleles)