LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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in the cell membrane
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on the rough ER
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in the nucleus
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at the ribososmes
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Detailed explanation-1: -1: Overview of protein synthesis. The first step in the process is transcription-the unfolding of DNA and the production of a messenger-RNA (mRNA) strand. This step takes place in the nucleus of the cell. Figure 26.14.
Detailed explanation-2: -In eukaryotic organisms, protein synthesis first starts in the nucleus of a cell because the instructions for making proteins are encoded into the genetic code stored in DNA.
Detailed explanation-3: -The Art of Protein Synthesis This process is called protein synthesis, and it actually consists of two processes-transcription and translation . In eukaryotic cells, transcription takes place in the nucleus .
Detailed explanation-4: -The nucleus is the site where DNA is replicated, and DNA is transcribed to make messenger RNA (mRNA) signals to start the process of translation or protein synthesis which occurs in ribosomes in the cell cytoplasm (all the cell body except the nucleus).
Detailed explanation-5: -Protein synthesis occurs in cellular structures called ribosomes, found out-side the nucleus. The process by which genetic information is transferred from the nucleus to the ribosomes is called transcription.