OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sequence of DNA at the beginning of the gene that tells RNA polymerase where to start transcription.
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Sequence of RNA that tells the ribosome where to start translation.
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Sequence of DNA at the beginning of the gene that tells the ribosome where to start transcription
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Sequence of RNA that tells RNA polymerase where to start translation.
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Detailed explanation-1: -Many eukaryotic genes have a conserved promoter sequence called the TATA box, located 25 to 35 base pairs upstream of the transcription start site. Transcription factors bind to the TATA box and initiate the formation of the RNA polymerase transcription complex, which promotes transcription.
Detailed explanation-2: -To begin transcribing a gene, RNA polymerase binds to the DNA of the gene at a region called the promoter. Basically, the promoter tells the polymerase where to “sit down” on the DNA and begin transcribing.
Detailed explanation-3: -A promoter, as related to genomics, is a region of DNA upstream of a gene where relevant proteins (such as RNA polymerase and transcription factors) bind to initiate transcription of that gene. The resulting transcription produces an RNA molecule (such as mRNA).