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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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
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