Hershey and Chase demonstrated that DNA was the genetic material using
A) poodles in microwave ovens.
B) hamsters and a blender.
C) frogs and a dishwasher.
D) viruses and a blender.
D) viruses and a blender.
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A peptide has the sequence NH2-phe-pro-lys-gly-phe-pro-COOH. Which of the following sequences in the coding strand of the DNA could code for this peptide?
A) UUU-CCC-AAA-GGG-UUU-CCC B) AUG-AAA-GGG-TTT-CCC-AAA-GGG C) TTT-CCC-AAA-GGG-TTT-CCC D) GGG-AAA-TTT-AAA-CCC-ACT-GGG E) ACT-TAC-CAT-AAA-CAT-TAC-UGA
Eutherian mammals are uniquely defined by:
A. having a placenta B. longer gestation periods because of more highly developed placentas C. having fur D. the young developing in a pouch E. laying eggs
Organisms capable of producing their own food are known as
a. autotrophs. b. heterotrophs. c. omnivores. d. Herbivores.
Without the work of Rosalind Franklin, Watson and Crick would not have known
A. which nucleotides could pair together. B. how many strands of DNA made up the molecule. C. the width of the molecule. D. the shape of the molecule. E. All of the answers are correct.