A new virus is discovered that has double stranded DNA and no envelope. The highly purified virions form large crystals. This new virus is most likely a member of which virus family?
A) Adenoviridae
B) Herpesviridae
C) Papillomarviridae
D) Poxviridae
E) Papillomaviridae
A
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The majority of control elements for regulation of cellular processes in eukaryotes and archaea occurs at the level of ________ initiation.
What will be an ideal response?
Which of the following statements about transport through phloem is true?
A. Transport only occurs from the roots to the shoot. B. It is aided by root pressure. C. The direction of flow can change at different times if the sources and sinks change. D. No energy is required. E. Mostly dissolved starch is transported.
Carrier molecules are utilized for ____
a. active transport only b. passive transport only c. both active and passive transport d. osmosis e. transport of all types of molecules
Which one of the following statements is TRUE regarding the structure of a muscle?
A) The outer surface of a muscle is enclosed by many layers of epidermis. B) All muscle cells in a muscle have the same origin and insertion. C) Fascicles of a muscle are surrounded by a thin sheath of hyaline cartilage. D) Connective tissues associated with the muscle converge to form a ligament at each end of the muscle. E) Each fascicle consists of two muscle cells.