A muscle contraction that results from a single action potential is known as:

A. a twitch.
B. tetanus.
C. isometric contraction.
D. threshold potential.


A

Biology & Microbiology

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One square meter of open ocean areas supports more phytoplankton growth than a comparable coastal water area

Indicate whether the statement is true or false

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The forked line and probability methods make use of what probability rule?

A. test cross B. product rule C. monohybrid rule D. sum rule

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You have discovered a new gene similar to an integrin. If you misexpress this gene in the wrong tissue early in development, what is a likely phenotype?  

A.  migration into the wrong area B.  apoptosis C.  homeotic transformation D.  defects in anterior-posterior patterning 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 integrins?   Consider Possibilities · Consider the different answer options. Which can you rule out? 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?

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A repair enzyme recognizes an incorrect structure in the DNA and directly converts it back to a correct structure. Which of the following DNA repair systems is responsible for the correction?

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Biology & Microbiology