Once a phage genome has become part of the host chromosome, it is called a ________
Fill in the blank(s) with correct word
prophage
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Polyproteins made from human viruses such as poliovirus must be ________ in order to yield the required functional units of the virus
A) able to interact with VPg proteins B) chemically modified with either glycolation or methylation C) post-translationally cleaved D) properly folded into secondary and tertiary structures
The earth and other planets of the solar system
were formed about ____ billion years ago.
a. 3.8 b. 4.6 c. 3.0 d. 2.9 e. 5.1
The responsible management (use and conservation) of the earth's resources indefinitely is called ________
A) the maximum sustainable yield B) landscape ecology C) an environmental conservation trust D) sustainable development
What experimental evidence suggests that the N-terminal tails of histones participate in the formation of higher-order chromatin structure?
a) The tails cause histones to denature. b) Chromatin fibers prepared with H4 histones lacking their tails cannot fold into higher-order fibers. c) Chromatin fibers prepared with H4 histones possessing longer tails cannot fold into higher-order fibers. d) The tails when acetylated cause the dissolution of the 30-nm fibers. e) Chromatin fibers lacking tails are shorter.