What type of mutation did the gamma radiation cause? A.
addition
B.
deletion
C.
duplication
D.
substitution

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.

Me. henley said, “in the rat race we call life, only the strong will survive.” he may have been referring to