A naked virus does not have a(n) _____.
Fill in the blank(s) with the appropriate word(s).
Envelope
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Molluscs that live in a tusk-like shell that is open at both ends belong to the class:
a. Polyplacophora. b. Scaphopoda. c. Cephalopoda. d. Gastropoda. e. Bivalvia.
The primary function of the large intestine is
a. formation of feces. b. retention of water. c. manufacture of vitamin K. d. digestion of fats. e. absorption of water
Intron self-splicing occurs when two ________ reactions excise the intron and allow exons to ligate
Fill in the blank(s) with correct word
EACH of the following features makes phage M13 an ideal genetic engineering tool for cloning and DNA sequencing EXCEPT
a. rapid lysis of host cells, yielding high virion bursts and multiple copies of cloned DNA. b. small genome size, which facilitates sequencing efforts. c. dsDNA, which is produced in its replicative form.. d. release from host cells without lysis, causing infected cells to act as a continuous source of cloned DNA as long as the culture is maintained.