In Bacteria, sensor kinases that respond to extracellular signals transfer this signal to the cytoplasmic machinery by typically phosphorylating the ________ residues
A) histidine
B) serine
C) threonine
D) tyrosine
Answer: A
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You are studying two traits in fruit flies: 1. eye color where there are two colors, brown and red 2. wing shape where there are straight and curled phenotypes
You mate two flies that are heterozygous for the genes that control both of these traits and get the following phenotypes in the following ratio: 9 red and straight; 3 red and curled; 3 brown and straight; 1 brown and curled Which phenotypes are dominant? What will be an ideal response?
Consider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 1 and 3
B. 6 and 4
C. 6 and 5
D. 2 and 3
E. 6 and 3
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 cladistics?
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?
Florigene, the rose plant that produces blue flowers, is an example of
In 2008, a DNA technology company, Florigene, Ltd., a Japanese subsidiary from Australia, claimed the production of a genetically blue rose. This was a great success since roses have no natural gene for producing blue pigments; further, roses do have a gene that controls the destruction of blue pigment molecules. To obtain the blue color, researchers had to inject genes from pansies and other flowers to counteract the natural chemistry of the plant. A. applying gene therapy. B. a clone. C. stem cell research. D. a transgenic organism. E. traditional breeding.
Antibodies are shaped like the letter
a. C. b. E. c. H. d. K. e. none of these.