DNA polymerase has multiple mechanisms for editing and error correction, whereas the capacity for error correction in RNA polyme
rases 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. Select reasons that explain why error correction is not as necessary in RNA polymerases as it is in DNA polymerases. At least one of the reasons you have selected does not explain why RNA polymerases do not require rigorous error correction.
Transcription can produce many mRNA transcripts that then can be translated into many proteins.
If only one of these mRNAs contains an error, not all the copies of that particular protein will contain an error. Additionally, mRNAs and proteins have a finite lifetime and can be degraded while DNA persists from generation to generation. and translation.
DNA polymerases are involved in the production of new DNA molecules while RNA polymerases are involved the transcription of DNA to mRNA.
Error correction is not necessary in RNA polymerase as compared to DNA polymerase because
1. The production of mRNA from DNA is for a period of time, that is, it is finite and when it is converted to proteins, it can be degraded. But the DNA replication is from generation to generation as it is inherited
2. The process of transcription is so fast. Thus, just few number of transcripts will have errors compared to the number produced.
The original source of all energy in a food web is the sun. the sun provides light energy that producers use in photosynthesis. animals eat the producers and other animals eat those animals. the energy flow goes up the web, but it all originated at the sun
The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. Evidence supports the idea that eukaryotic cells are actually the descendents of separate prokaryotic cells that joined together in a symbiotic union.
The Hardy Weinberg principle of genetic equilibrium defines that gene and allelic frequencies will remain the same among the generations in an infinitely large interbreeding population. In this population the mating among the members of the population is random and no selection, migration and mutation will occur.
