COPY: central dogma
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COPY: central dogma

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@SuaveBlessing

Questions and Answers

The Central Dogma states that DNA is used to make ______ is used to make Protein.

RNA

A ______ region acts as the template for the transcribed RNA, located downstream of the transcription start site.

transcribed

The transcription start site is denoted as '+1' corresponding to the first ______ at the 5' end of the RNA product.

nucleotide

Prokaryotes depend largely on ______ regulation, using repressor proteins to control gene expression.

<p>negative</p> Signup and view all the answers

Eukaryotes depend on ______ regulation of gene expression, but also regulate gene expression with transcription factors.

<p>positive</p> Signup and view all the answers

Basal transcription factors bind to the ______ to recruit RNA polymerase.

<p>promoter</p> Signup and view all the answers

Regulatory transcription factors including both activators and ______ can bind to proximal control elements upstream of the promoter.

<p>repressors</p> Signup and view all the answers

Position-independent elements called ______ greatly increase transcription when bound by transcriptional activators.

<p>enhancers</p> Signup and view all the answers

The ______ domain is located upstream of the transcription start site.

<p>regulatory</p> Signup and view all the answers

The base positions denoted by negative numbers are located ______ of the transcription start site.

<p>upstream</p> Signup and view all the answers

For transcription, one strand of DNA acts as a template for the production of an RNA strand by the enzyme ______ polymerase.

<p>RNA</p> Signup and view all the answers

The process of transcription occurs in stages: ______ - RNA polymerase interacts with the promoter at the TATA box to establish a transcription complex.

<p>Initiation</p> Signup and view all the answers

Transcription in eukaryotes makes ______-mRNA that must be processed to mature mRNA for translation.

<p>pre</p> Signup and view all the answers

A ______ cap and a 3' polyA tail both protect the mRNA, aid in export of mature mRNA to the cytoplasm, and improve translation efficiency by the ribosome.

<p>5'</p> Signup and view all the answers

Splicing removes ______, which are extra nucleotides in the transcribed region of genes, and ligates together exons to make a mature mRNA with a correct protein coding sequence.

<p>introns</p> Signup and view all the answers

MRNA has a protein coding sequence using ______ which are translated using tRNA.

<p>codons</p> Signup and view all the answers

Translation occurs in the ______, a large multi-protein complex that interacts with mRNA and enzymatically assembles polypeptides.

<p>ribosome</p> Signup and view all the answers

During ______, a charged tRNA enters the A-site.

<p>elongation</p> Signup and view all the answers

The ______ tRNA exits at the E site and the process repeats until a stop codon lines up with the A-site and binds to a release factor, halting translation.

<p>used</p> Signup and view all the answers

Translate an mRNA using a ______ table, starting at the first 5' AUG.

<p>codon</p> Signup and view all the answers

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