A species that is well studied so that we can learn

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A species that is well studied so that we can learn more about the way we work is call a ________. C. model organism
Feedback: Correct Question 9 of 40 2.5/ 2.5 Points What would happen if there were a mutation in the operator of the trp operon?
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Question 10 of 40 2.5/ 2.5 Points If every cell in the body gets the same DNA, how do the cells of an embryo make different structures and take on different roles? (Select all that apply.)
Feedback: Learning Objective Text: Analyze the processes of gene expression and gene regulation Question 11 of 40 2.5/ 2.5 Points When performing gel electrophoresis, how is it possible to determine the size of the DNA fragments?
Feedback: Correct Question 12 of 40 2.5/ 2.5 Points The place where Darwin noticed finch and tortoise differences that helped him develop his theory of evolution was ________? B. the Galapagos Islands
Feedback: Correct Question 13 of 40 2.5/ 2.5 Points The web of life model and the ring of life model of phylogeny both rely on which mechanism?
Question 14 of 40 2.5/ 2.5 Points _________ are sequences of DNA that are associated with promoter regions and can be methylated to inactivate genes
Feedback: Correct Question 15 of 40 2.5/ 2.5 Points Which type of mutation would NOT be subjected to natural selection?
Feedback: Correct Question 16 of 40 2.5/ 2.5 Points ________ can occur when newly formed species produce hybrids and the original reproductive barriers break down.
Feedback: Correct Question 17 of 40 2.5/ 2.5 Points At a family get-together, your uncle says “I don’t believe in that evolution stuff. Scientists
are always saying that something evolved because of ‘a gene for eyes’ or ‘a gene for wings’. Well, that’s crazy – how can one single gene build an eye or a wing?” How do you reply?

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