If cells from a wing are transplanted to the leg prior to their determination, into what will they likely develop?
A. wing cells
B. leg cells
C. a mixture of wing and leg cells
D. cannot be determined
E. undifferentiated cells
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 determination?
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?
B. leg cells
Clarify Question
· What is the key concept addressed by the question?
o This question addresses determination.
· What type of thinking is required?
o This question is asking you to take what you already know and apply it to this unfamiliar situation.
· What key words does the question contain and what do they mean?
o Transplantation is the process of removing cells from one specimen, and inserting them into a new spot on another specimen.
o Determination is the process of a cell committing to a particular cell fate.
Gather Content
· What do you already know about determination?
o When a cell is determined, it is expressing genes that commit it to developing according to a particular cell fate.
Consider Possibilities · What other information is related to the question? Which information is most useful?
o If the wing cells are not yet determined, they are not yet committed to becoming wing cells.
o They will likely respond to signals in the leg that determine leg cell identity.
Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
o The transplanted cells will likely develop as leg cells.
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?
o This question asked what would become of transplanted cells that were transplanted before they became determined.
o The question required you to take what you already know and apply it to this unfamiliar situation.
o Did you recognize that since the cells were not yet determined, they would likely take on the fate of the new location?
You might also like to view...
You cut a plasmid with a restriction enzyme that cuts it into three pieces — one fragment is 240 base pairs, one fragment is 600 base pairs, and one fragment is 1200 base pairs. You carry out electrophoresis of the digested sample. Which of the fragments will be closer to the top of the gel where the sample was inserted?
A. The 240 base pair fragment. B. The 600 base pair fragment. C. The 1200 base pair fragment. D. They will all be near the top because they all have sticky ends. E. It depends on the charge of the DNA fragment.
A frontal plane is indicated by
a. A. b. B. c. C. d. D. e. E.
A promoter is a regulatory region located at the ____
a. beginning of a gene b. end of a gene c. beginning of a chromosome d. centromere of a chromosome e. end of a chromosome
A cross between homozygous red-eyed flies and homozygous white-eyed flies results in progeny that all have red-eyes. This result demonstrates:
a) dominance. b) the law of independent assortment. c) a blending of alleles. d) the norm of reaction. e) a dihybrid cross.