Which statement accurately describes dna? a. dna is found on genes. b. dna is replicated by mrna. c. dna is a molecule that contains genes. d. dna is a molecule made up of chromosomes.

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.