Biology, 19.12.2019 06:31 darkpain4371
Dna polymerase has multiple mechanisms for editing and error correction, whereas the capacity for error correction in rna polymerases seems to be quite limited. however, like a dna mutation, an rna polymerase error in transcription can cause production of a mutated protein. the limited error correction of rna polymerase seems to be inconsistent with the potentially serious consequence of producing a protein with an altered amino acid sequence. a) defective proteins are often degraded quickly, making their effects temporary. b) single amino acid substitutions caused by errors in mrna transcription would not affect protein function. c) unlike dna mutations, mrna transcripts have short half-lives and are not inherited across many generations. d) degradation of defective proteins activates mrna repair pathways e) rna polymerases synthesize many transcripts per gene, so only a small fraction of rna transcripts would have errors. f) ch mrna molecule is only translated once and then degraded.
Answers: 2
Biology, 22.06.2019 05:30, awesome266
This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels. southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels. to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map. b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off
Answers: 1
Dna polymerase has multiple mechanisms for editing and error correction, whereas the capacity for er...
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