A dideoxy nucleotide is missing an -OH group at the 2' end
Indicate whether the statement is true or false
FALSE
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When phage ? enters the lytic cycle
A. many new copies of the phage genetic material and coat proteins are assembled to make new phages. The host cell is lysed B. many new copies of the phage genetic material and coat proteins are assembled to make new phages. The host cell remains intact. C. the genetic material of the phage is integrated into the chromosome of the bacterium. D. it immediately lyses the host cells without producing any new viruses.
Which of the following is a fairly reliable method of characterizing strains of S. aureus?
A. Complement fixation B. Protein fingerprint C. Genome typing D. LPS pattern
The mechanism that regulates the movement of
substances into and out of the cells of the brain is the a. cerebrospinal fluid. b. reticular formation. c. tectum. d. blood-brain barrier. e. brain stem.
A man has been standing in one place without moving for a long time. You walk by and notice that his ankles are swollen. What is a likely explanation for this observation?
A) Since the man has not flexed his leg muscles, blood has not moved upward through the veins so it stays pooled at his ankles. B) The man's blood pressure has likely increased because of inactivity, and thus the blood has pooled at his ankles. C) Since the man hasn't flexed his leg muscles, blood has not moved upward through the arteries so it stays pooled at his ankles. D) The man's heart rate has likely increased because of inactivity, and thus the blood has pooled at his ankles.