How is the information encoded in DNA actually used by organisms?
What will be an ideal response?
Answer: the information in DNA is transcribed to RNA then usually translated into protein
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Based on the phylogeny shown, we can conclude that species 2 is most closely related to species
A. 1.
B. 3.
C. 4.
D. 5.
E. 1 or 3 (can't tell).
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 phylogenetic trees?
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?
Olfactory receptors detect
a. water-soluble substances. b. volatile substances. c. fat-soluble substances. d. alcohol-soluble substances. e. both a and b.
Gene regulation in eukaryotes is more complicated than bacterial gene regulation. Which of the following describes a gene regulation event that occurs in eukaryotes but not in bacteria?
A) In eukaryotes, mRNA does not need to be modified. B) In eukaryotes, transcription and translation occur in the same cellular compartment. C) In eukaryotes, histones must be added or removed to regulate gene expression. D) In eukaryotes, mRNA degrades quickly compared to bacterial mRNA that is more stable. E) In eukaryotes, proteins are post-translationally modified, whereas bacterial proteins are never post-translationally modified.
Which process underlies the thigmotropic behavior of a green bean tendril?
A) rotation of the tendril in response to photoperiod B) rotation of the tendril in response to a biological clock C) extra proliferation of cells on the shaded side of the tendril D) slower growth on the side where an object is touching the tendril