What are the three dominant classes of RNA molecules in cells? Which one of these three...

What are the three dominant classes of RNA molecules in cells? Which one of these three has the longest RNA molecules, and which has the shortest RNA molecules?

How are RNA molecules synthesized in cells? Draw the chemical structure of a single elongation event. Explain how the synthesis of RNA molecules is terminated in bacterial cells. What modifications are added to an mRNA in eukaryotes after the mRNA has been transcribed?

Expert Solution

gladiator answered 1 year ago

There are three (3) types of RNA in prokaryotic cells. What are the types and how...

There are three (3) types of RNA in prokaryotic cells. What are the types and how are these molecules synthesized? Compare and contrast RNA synthesis in prokaryotes to that of eukaryotes.

Which of the following contains 3 different RNA molecules?

Which of the following contains 3 different RNA molecules? (a) the prokaryote 30S ribosomal subunit (b) the eukaryote 40S ribosomal subunit (c) the prokaryote 50S ribosomal subunit (d) the eukaryote 60S ribosomal subunit (e) all of the above

The polymerase that synthesizes which of the following molecules uses RNA as a template and synthesizes...

The polymerase that synthesizes which of the following molecules uses RNA as a template and synthesizes new stands from 5' to 3'? 1. Neither RNA polymerase nor DNA polymerase 2. both RNA polymerase and DNA polymerase 3. DNA polymerase only 4. RNA polymerase only

Eukaryotic cells produce three distinct RNA polymerases: pol I, pol II, and pol III. Which of...

Eukaryotic cells produce three distinct RNA polymerases: pol I, pol II, and pol III. Which of the following statements is NOT true about eukaryotic RNA polymerases? A) Pol II, with twelve subunits on its own, is capable of initiating transcription. B) Pol III is responsible for the transcription of all tRNAs. C) Pol I carries out the transcription of the 45S pre-rRNA transcript. D) Pol III is responsible for the transcription of ribosomal 5S rRNA.

Why is it important to understand ribosomal RNA in the classification of cells in all three domains?

Which statement is true? A. All proteins are enzymes, and some RNA molecules also are catalytic....

Which statement is true? A. All proteins are enzymes, and some RNA molecules also are catalytic. B. Most enzymes are proteins, but some RNA molecules also are catalytic. C. All proteins are enzymes. D. All enzymes are proteins.

Which type of MHC class molecules is found on all nucleated cells and is used to...

Which type of MHC class molecules is found on all nucleated cells and is used to communicate with cytotoxic T-lymphocytes? Which class is found only on APCs and is used to communicate with helper T-lymphocytes? Where does a lymphocyte typically encounter an antigen for the first time? Describe how both helper T-lymphocytes and cytotoxic T-lymphocytes are activated. Is a separate APC required for B-lymphocyte activation, or is a B-lymphocyte able to serve the role of an APC? What are the...

What are the three basic actions which the hormones act on target cells?

1) Class II MHC molecules are found on which of the following? liver cells and macrophages...

1) Class II MHC molecules are found on which of the following? liver cells and macrophages in the spleen granulocytes and microphages red blood cells lymphocytes and antigen-presenting cells all body cells with a nucleus 2) Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation except heat of the inflamed tissue. swelling of the inflamed tissue. movement of defense proteins and cells into the interstitial space. chemotaxis of phagocytes....

what would happen to bone tissue if one of the three types of bones cells was...

what would happen to bone tissue if one of the three types of bones cells was missing but the othet types of bone cells were present?

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