The modern synthesis is based on all of the following EXCEPT
a. linking microevolution and macroevolution
b. linking Darwinism with Mendelism
c. a focus on population genetics
d. linking population growth with variation to explain natural selection
e. interpreting data from a wide variety of biological disciplines in an evolutionary
framework
D
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The transcription terminator
A. results in a hairpin loop structure in RNA. B. results in the polymerase falling off the DNA template. C. stops DNA polymerase. D. adds a terminator nucleotide to the RNA. E. results in a hairpin loop structure in RNA AND results in the polymerase falling off the DNA template.
Honeybees can detect a variety of odorants through olfactory receptors on their antennae. You genetically engineer a receptor to be gated by the explosive chemical TNT, and use a transgene to express the receptor in honeybee olfactory neurons. What would this provide to the bee?
Honeybees have an incredible ability to distinguish thousands of different odorant molecules, using their large repertoire of olfactory receptors. A wide variety of different types of chemicals can be detected as odorants -- they simply require olfactory neurons with a receptor that can bind the chemical and transduce that stimulus into a receptor potential. A. the ability to taste TNT B. it would have no effect C. the ability to smell TNT D. the ability to collect TNT molecules E. the ability to see TNT Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about olfaction? What other information is related to the question? Choose Answer Given what you now know, what information 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 cystic fibrosis, two unaffected carriers can have a child with the disease. It is as common in boys as in girls. This disease is Select one:
a. X-linked dominant. b. X-linked recessive. c. autosomal recessive. d. pleiotropic. e. autosomal dominant.
Adaptive radiation results in which of the following?
A. extinction in many cases B. a divergence of body form and function C. convergent evolution, for most cases D. an increase in the amount of competition