The BLM protein plays a role in separating DNA molecules during S phase. What molecular process does the BLM protein act on?
A) DNA replication
B) transcription
C) translation
Answer: A
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An ecosystem is unlikely to be limited by the supply of _____ because it is obtained from the air.
a. water b. carbon c. phosphorus d. calcium e. nitrogen
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?
A single, weak contraction of a muscle fiber is called
a. an action potential. b. a muscle twitch. c. fatigue. d. tetanus. e. constriction.
In Griffith's experiments with Streptococcus pneumoniae, rough nonencapsulated streptococci were converted into smooth encapsulated streptococci in the presence of the heat-killed smooth encapsulated streptococci. Which microbial process had Griffith identified?
A. Transformation B. Transduction C. Conjugation D. Cloning