Chapter 1 The Genetics Revolution MULTIPLE-CHOICE QUESTIONS Section 1.1 (The birth of genetics) 1. The early 1900s was an important period for genetics due to which of the following major events? A) the rediscovery of Gregor Mendel’s scientific findings B) Watson and Crick solving the structure of DNA C) Walter Sutton and Theodore Boveri hypothesizing that chromosomes are the hereditary elements D) All of the answer options are correct. E) the rediscovery of Gregor Mendel’s scientific findings and Walter Sutton and Theodore Boveri hypothesizing that chromosomes are the hereditary elements Answer: E 2. A sample of normal double-stranded DNA was found to have a guanine content of 18%. What is the expected proportion of adenine? A) 9% B) 32% C) 36% D) 68% E) 82% Answer: B 3. In one strand of DNA the nucleotide sequence is 5'-ATGC-3'. The complementary sequence in the other strand must be: A) 3'-ATGC-5'.