A gene is transcribed in a fibroblast and a chondrocyte, but the primary structure of the encoded peptide is different in the two cells. In the fibroblast, there appears to be missing amino acids at the C-terminus. Which of the following could be the cause of this difference in the fibroblast? O A. Leaky scanning is occurring O B. No cap is being added to the pre-MRNA OC. There is an increase the length of the poly-A tail D. There is a decrease the length of the poly-A tail O E. An alternative Poly-A site is being used
A gene is transcribed in a fibroblast and a chondrocyte, but the primary structure of the encoded peptide is different in the two cells. In the fibroblast, there appears to be missing amino acids at the C-terminus. Which of the following could be the cause of this difference in the fibroblast? O A. Leaky scanning is occurring O B. No cap is being added to the pre-MRNA OC. There is an increase the length of the poly-A tail D. There is a decrease the length of the poly-A tail O E. An alternative Poly-A site is being used
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Asap I need both answer. Please explain both why answer is correct.
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Transcribed Image Text:A gene is transcribed in a fibroblast and a chondrocyte, but the primary structure of the
encoded peptide is different in the two cells. In the fibroblast, there appears to be missing
amino acids at the C-terminus. Which of the following could be the cause of this difference in
the fibroblast?
O A. Leaky scanning is occurring
O B. No cap is being added to the pre-MRNA
O C. There is an increase the length of the poly-A tail
D. There is a decrease the length of the poly-A tail
O E. An alternative Poly-A site is being used
What is a mechanism that allows the same protein (with the same amino acid seguence) to
have different functions within cells?
O A. Alternative Poly-A tail addition sites
O B. Alternative splicing
OC. Co-translational membrane insertion
O D. Different combinations of covalent modification
OE.B and D are both correct
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