Four of the five answers listed below are habitats favoring fossil preservation. Select the exception
a. deserts
b. swamp
c. tar pits
d. seafloor
e. caves
A
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Ligation reactions occur most efficiently between DNA fragments:
A. that have sticky ends. B. that have blunt ends. C. that have complementary sticky ends. D. that are cleaved with different restriction enzymes. E. where one fragment has a sticky end and the other has a blunt end.
When a segment of DNA duplicates, causing two copies of a gene to be present in the chromosome, the duplicate copy could possibly (Check all that apply)
_____ lose function due to mutation. _____ become an ortholog. _____ gain a new function due to mutation. _____ become a pseudogene. _____ become a centromere. 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 gene duplication? 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?
The seed plants became dominant during the late ___ when the climate became ___
a. Cambrian; wetter b. Carboniferous; drier c. Carboniferous; wetter d. Cretaceous; drier e. Cretaceous; wetter
Which one of the following parts of the brain regulates heart activity?
A) cerebrum B) cerebellum C) thalamus D) midbrain E) medulla oblongata