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Home Q & A Board Biology-Related Homework Help Biochemistry
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nurkasih nurkasih
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11 years ago
A. Two different genes can produce the same RNA transcript, whicj will then be translated differently.
B. There is more than one way to modify the coded polypeptide
C. There is more than one way to slpice an RNA transcript.

why is A the wrong answer,?

and what is the right answer and why is it the right answer?
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wrote...
#1
11 years ago
a is wrong because if the RNA is the same, then the polypeptides will be the same, too

however C is believe is correct because there IS more than one way to splice RNA - think of it as a movie. you can take 10 minutes of footage and splice (cut and paste) it into MANY different ways/forms of bases (A U C G).

ex: AUGCUGCUGG could become AUGCUGGGCU or CUGCUGGAUG , etc.
wrote...
#2
11 years ago
c)

The average human gene consists of 9 exons (regions that are exported from the nucleus to the cytosol) separated by 8 introns (intervening sequences that are spliced out before the mRNA is exported to the cytoplasm).  All of them are transcribed, but then alternative splicing allows for different introns and exons to be spliced out, yielding multiple different exon-combinations from a single pre-mRNA.
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