to do with specialization and that we have

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Unformatted text preview: you consider organelles!) to do with specialization and that we have organelles within a double stranded region one strand will be copied. For some genes one strand can be copied at one time and the other at a different time. 3 genes, 3 coding sequences, 3 proteins that are different made from the same region of one strand-Overlapping genes: each gene comes from a different reading frame and is coded by the same piece of DNA. When we make a copy we are using RNA that is coding, so the sequence in the RNA is a reference point (sense copy, coding strand, plus strand). The complement to it is the non-coding strand, the anit-sense or minus strand. BIO 1140 Unit 2-2: Transcription Why are there multiple RNA Polymerases? Different RNA polymerases function in different locations. Within the nucleus different RNApol transcribe different sets of genes. They are spets. In order to recognize the correct gene to transcribe, RNApols must recognize different signals in the DNA. RNA polymerase I transcribes rRNA in the nucleolus (part of the nucleus) RNA polymerase II transcribes mRNA and most snRNAs in prokaryotes there is only one RNA polymerase because they bind different protein factors that help select the...
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