Describe all the possible forms of nucleic acids found in viruses
What will be an ideal response?
Single-stranded DNA, double-stranded DNA, single-stranded RNA, double-stranded RNA
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A DNA double helix has two strands that are held together by ____
a. hydrogen bonds b. ionic bonds c. hydrophobic interactions d. phosphodiester bonds e. covalent bonds
Which of the following events occurs last in an action potential?
a. Opening of voltage-gated Na+ channels b. Closing of voltage-gated Na+ channels c. Opening of voltage-gated K+ channels d. Closing of voltage-gated K+ channels
An open system in which the growth rate is maintained by the removal and addition of media at such a rate as to maintain a constant cell density is called a ________.
A. manostat B. chemostat C. culturostat D. turbidostat
Although actinomycetes vary in many ways, they all share a common type of cell wall.
Answer the following statement true (T) or false (F)