This small segment is prokaryotic mRNA plays an essential role in translation. W

Question

This small segment is prokaryotic mRNA plays an essential role in translation. What is the name of this experiment. Which statement below are true for this stamen? Select (circle) all that apply. You will loose all points if you circle all choice below: 1. This segment is complementary in the TATA box. This segment helps being the large submit of the ribosome to mRNA molecule. 3. This segment is complementary to SS rRNA. 4. This segment is complementary to 165 rRNA. 5. Many prokaryotic mRNA molecule do not have this segment. 6. This segment plays a critical role to the small submit of the to a mRNA molecule. Indicate where this segment is in an mRNA molecule shown with an arrow. You isolated a recessive (loss-of-function) mutation of an enzyme secreted into the stomach in mice. It appeared that gene is normally transcribed and translated. However, the cells that produce this enzyme accumulate that enzyme in the cytoplasm. Describe a possible molecular of this mutual gene with one sentence. Hypothetically, the same gene exists in E. coil (prokaryote) and in yeast (eukaryote). The speed of transcription of any genes in E. coil and yeast is the same. Dr. T measured accumulation of the protein from this gene in E. coli and yeast and observed that E. coli accumulated this protein much faster than yeast. Which of the following statement does not explain this observation? Select (circle) all that apply. You will loose all the points if you circle all choices below. a) Prokaryotic cells have a special shuttle system to export mRNA much faster from the nucleus to the cytoplasm than eukaryotic cells do. Although prokaryotic cells do not have a nucleus, translation of mRNA occurs after transcription completes. c). MRNA of eukaryotic gene needs to be modified and transported from the nucleus to the cytoplasm for translation. d) Since prokaryotic cells do not have a nucleus, ribosome's directly proteins from genes.

Explanation / Answer

The correct answer is option 5 and 6.

AUG is the start codon for mRNA and it can transcript and translated by a ribosome. Generally start codon codes for methionine in eukaryotes and modified Met in prokaryotes.

Q.No 7

The correct answer is option A and D.

Transcription is process of transfer of genetic information from the cells of DNA to its mRNA and it can takes place in the cell nucleus. After transcription process, protein is synthesized from mRNA and this process is known as translation.

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