A useless or rudimentary body part that is thought to have been important in ancestral populations but no longer has a known function is termed a(n) ________
A) evolved structure
B) terminal structure
C) vestigial structure
D) residual structure
C
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If you were to completely digest this fragment of DNA with PstI, how many pieces of DNA would you obtain?
A 6.85 kb EcoRI fragment of DNA is shown below. The location of several restriction sites is indicated. Scale is approximate.
A. 1
B. 2
C. 3
D. 4
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 restriction enzymes?
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?
In what groups of vertebrates can you find internal fertilization? (Select all correct choices.)
A. mammals B. reptiles C. birds D. fish E. frogs
If a couple is planning on having two children, what is the probability that both will be male?
a. 0 b. 1/4 c. 1/2 d. 3/4 e. 1
Starting with citrate, how many of the following would be produced with three turns of the citric acid cycle?
A) 1 ATP, 2 CO2, 3 NADH, and 1 FADH2 B) 2 ATP, 2 CO2, 1 NADH, and 3 FADH2 C) 3 ATP, 3 CO2, 3 NADH, and 3 FADH2 D) 3 ATP, 6 CO2, 9 NADH, and 3 FADH2 E) 38 ATP, 6 CO2, 3 NADH, and 12 FADH2