ing Time: 27 minutes, 11 seconds on Completion Status: Originaly a marine specie
ID: 201066 • Letter: I
Question
ing Time: 27 minutes, 11 seconds on Completion Status: Originaly a marine species, stickleback fish now live in both marine and freshwater environm ents Marine sticklebacks have pelvic spines that otect them from marine predators. Freshwater sticklebacks do not have pelvic spines, freshwater predators that can grasp onto these spines. The lack of spines in freshwater sticklebacks results from a heritable mutation that modifies the function of the Pitx1 gene. This mutation occurred: a. in the mRNA that is transcribed from the Pitx1 gene in pelvic cells. b. in the coding region of the Pitx1 gene. c. in germ line ceils of freshwater sticklebacks which reduces their likelihood of being caught by Od. in the ceils of the brain of freshwater sticklebacks. QUESTION 4 1 points In contrast to mutations in regulatory regions (non-coding) regions, mutations in coding regions (introns) of the genome are less likely to result in the death of the individual are more likely to result in the death of the individual o a. b. c. are less likely to result in the formation of monsters and/or superheroes. Save Al Ansser Click Save and Submit to save and submit. Click Save All Answers to sove all answersExplanation / Answer
Answer to 1st question is a) mrna that is transcribed from pitx1 gene in pelvic region. And in 2nd ques answer is b) are more likely to result in death of the individual as coding region mutations are lethal as compare to non-coding regions.
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