A S. aureus culture was susceptible to phage types 7, 54, and 77. To which lytic group does this strain of S. aureus belong?
A) I
B) II
C) III
D) IV
C) III
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Consider the cladogram shown. Based on this cladogram, which species has the greatest number of ancestral character states (pleisiomorphies)?
A. 1
B. 2
C. 3
D. 4
E. 5
F. 6
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?
Gather Content
· What do you already know about cladistics?
Consider Possibilities
· What other information is related to the question? Which information is most useful?
Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following is not typically a modification of histones?
A. adenylation B. phosphorylation C. methylation D. acetylation E. adenylation and phosphorylation
Where does fertilization take place in the female reproductive system?
a. vagina b. ovaries c. oviduct d. uterus
There are multiple cloning vector types in modern recombinant DNA technology ranging from plasmids to viral vectors. Which vector type is most useful when cloning an insert of approximately 500kb?
A) viral vector B) human artificial chromosome C) bacterial artificial chromosome D) yeast artificial chromosome E) bacterial plasmid