Bio 107 Exam 1 QUESTIONS AND ANSWERS 100% SOLVED

Bio 107 Exam 1 QUESTIONS AND ANSWERS 100% SOLVED The name of the sequence of DNA recognized by transcription factors to initiate transcription is called a: A. start sequence B. promoter C. start codon D. origin of transcription B What result led Griffith to conclude that a transforming substance could turn non-pathogenic bacteria into pathogenic bacteria? A. S strain bacteria killed mice B. heat-killed S strain bacteria did not kill mice C. heat-killed S strain bacteria added to R strain bacteria killed mice D. R strain bacteria did not kill mice C Which type of bond(s) must be broken to hydrolyze an RNA strand? A. Hydrogen bonds B. Ionic bonds C. Covalent bonds D. Both covalent and hydrogen bonds C Using Chargaff's rules, if the percent of A in a bacterial species is approximately 20%, then the percent of G is approximately: A. 20% B. 80% C. 30%