Pre-mRNA is the polymer is synthesized during transcription, it is different from polymer being copied in having U instead of A.
A DNA fragment is copied into RNA during transcription. Messenger RNA is the term for DNA segments that are translated into RNA molecules that can encode proteins. Non-coding RNAs are RNA molecules that contain copies of additional DNA segments. Only 1% to 3% of all RNA samples are mRNA.
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Lillian Wald
Lillian Wald was a nurse and humanitarian. She founded community nursing and coined the nurses integrated in the community as " public health nurse". She also established the very first public health nursing system. She also campaigned to have nurses in public schools.
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A Question
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Then support the hypothesis and question.
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The central idea of biological evolution is that all life on Earth shares a common ancestor, just as you and your cousins share a common grandmother.