Explain the ramifications to the process of transcription if the following occurs: (READ DETAILS)?

Question

a.) the termination sequence of a gene is removed
b.) Poly-A polymerase is inactivated
c.) the enzyme that adds the 5' cap is nonfunctional
d.) spliceosomes excise exons and join the remaining introns together
e.) the RNA polymerase fails to recognize the promoter sequence

Answer 1

A. Transcription will not stop

B. the RNA molecule will not have a Poly-Adenyl tail of 200 adenosine nucleotides to its 3' end.


C. If it is not capped off, then it won't become a functioning mRNA molecules, because a cap is need.

D. Introns are NON-coding sequences and can't be used to code for proteins and can't be used as a mRNA molecule

E. transcription won't begin.

Answer 2

A The transcript will not terminate, it would be to long
B The transcript may be degraded before translation
C The transcript will not be exported for translation
D An abnormal transcript with no ORF is generated
E The transcript will never be begun.