Sinlge-celled organisms and soft, boneless animals. Back then organisms were single-celled and simple.
Answer:
Knew about zebra element, thought there were no separable stipe cis-elements
Applied stubbs to a larger domain, upstream and downstream
Found separate stripe elements using same method
What is different with retroviruses in reproduction is that they do not kill their hosts at first because they can still insert their own genome. This process is what is known the reverse transcription. This is done by different proteins.
C) this is typical of a subsection zone
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