Which of the following is an example of an
interacting effect causing a decline in a
species?
a. habitat loss of the polar bear
b. dodo birds being hunted by sailors
c. pollution buildup in the eggs of eagles
d. decline in buffalo causing a drop in native
clover
e. all of these
D
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If you were given a bacterial strain with a mutation in the promoter region of the trp operon the most likely effect would be
A. interference with RNA polymerase binding. B. to block the repressor from binding. C. derepression of the trp operon. D. enabling the trp operon to be expressed in the absence of tryptophan. E. lack of expression of just the first gene in the operon. 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 promoters? 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?
Genetic studies have found that Charcot-Marie-Tooth may be caused by a mutation in the gene Mitofusin-2 (MFN2), which causes mitochondria to form large clumps. In what area of a neuron are these clumps most likely to cause a problem?
Charcot-Marie-Tooth is the most commonly inherited peripheral neuropathy, and has no known cure. Patients suffer damage to motor and sensory neurons, leading to degeneration of muscles and gradual loss of motor control. A. axon B. synapse C. soma D. dendrite E. myelin Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content/Choose Answer · What do you already know about components of the nervous system? What other information is related to the question? 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?
As one form of energy is converted into another, there is always some energy lost as
a. chemical energy. b. activation energy. c. heat. d. kinetic energy. e. light.
The genotypes and numbers of progeny resulting from a testcross are as follows: t+g+ l+ 72 tgl 69 t+gl 21 tg+l+ 18 t+gl+ 9 tg+l 8 t+g+l 2 tgl+ 1 Total 200 Calculate the genetic distance between genes g and l
What will be an ideal response?