Stable annealing due to hydrogen bonding between DNAs of similar nucleotide sequence from different organisms is referred to as ________.
A. hybridization
B. restriction
C. ligation
D. hydrolysis
Answer: A
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The molecule currently being investigated as a possible means of synthesis of the first proteins is:
A. mRNA. B. DNA. C. tRNA. D. rRNA. E. aminoacyl tRNA synthetases.
What is the key concept addressed by the question?
What will be an ideal response?
Birds and mammals are both warm-blooded, and are
A. parsimonious. B. paraphyletic. C. common ancestors. D. polyphyletic. E. monophyletic.
One of the unexpected findings to occur in comparing mouse and human genomes is
A. that "junk" DNA may be more functional than we assumed. B. how similar some gene families are to their original transposons. C. how incredibly different they are. D. that there is far more "junk" DNA than we ever thought.