Which of the Following Statements About Eukaryotic Rna Is True

The sigma factor is essential for the correct initiationof transcriptionb. The premise is false.

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Transfer RNAs bind amino acids in the cytoplasm.

. B It is the subunit of prokaryotic RNA polymerase that is required to recognize promoters. The additional steps involved in eukaryotic mRNA maturation create a molecule that is much more stable than a prokaryotic mRNA. RNA pol transcribes rRNA and RNA pol Il transcribes mRNA RNA pol I transcribes tRNA and RNA pol III transcribes mRNA RNA poll transcribes mRNA and RNA pol Il transcribes rRNA RNA pol Il transcribes mRNA and RNA poll transcribes tRNA RNA.

Biology questions and answers. None of the above. RNA containing a ribose sugar is more reactive than DNA and is not stable in alkaline conditions.

Termination is accomplished by the use of a hairpinloop or the use of the rho factore. O A In eukaryotic cells alternative splicing is a way gene regulation occurs at the RNA levels. Transcription termination in eukaryotes depends on.

Iii They have a nuclear membrane. DNA could be a double-stranded molecule whereas RNA could be a fibre molecule. Which of the following statements is precisely correct true.

This is reflected in two distinct differences between the prokaryotic and eukaryotic systems. 1 2 and 3 1 and 2 2 and 3 2 only The types of RNA include messenger. The role of snRNPs in splicing pre-mRNAs is illustrated below.

Which of the following statements is true for eukaryotic RNA polymerases. Eukaryotic ribosomes have a P site prokaryotic ribosomes do not have a site O Eukaryotic ribosomes consist of proteins and rRNA prokaryotic ribosomes do not have RNA Eukaryotic ribosomes have a large subunit and a small subunit while prokaryotic ribosomes have just one subunit Prokaryotic cells dont have ribosomes Eukaryotic ribosomes are larger than. Which of the following statements are true about eukaryotic mRNAa.

SnRNPs are particles composed of RNA and proteins. Due to its deoxyribose sugar which contains one less oxygen-containing hydroxyl group DNA is a more stable molecule than RNA which is useful for a molecule which has the task of keeping genetic information safe. 2 RNA contains the nitrogen base uracil instead of thymine.

A It blocks access of RNA polymerase to the promoter until removed by general transcription factors. This occurs in the nucleus of eukaryotic cells with DNA polymerase. Ii They have a well organised nucleus.

Transcription results in strands that contain uracil instead of thymine. Hence the proper answer is One of the bases from DNA is replaced by uracil. Eukaryotic RNA Processing Eukaryotic mRNAs must undergo several processing steps before they can be transferred from the nucleus to the cytoplasm and translated into a protein.

What is its function in transcriptional initiation. RNA polymerase III synthesizes mRNA. Scientists estimate that human cells have over five hundred completely different tRNAs.

Which choice reflects the polypeptide form the N to C polypeptide Choose the one. View bio exam 1docx from BIOL 10000 at Hunter College CUNY. I They do not have a nuclear membrane.

Instead of a single polymerase comprising five subunits the eukaryotes have three polymerases that. RNA polymerase II synthesizes snRNA and rRNA. So B is the correct option.

First whereas all genes are transcribed by a single RNA polymerase in bacteria eukaryotic cells contain multiple different. RNA polymerase requires a sequence on DNA to show it where to bind. Processing takes place in the cytoplasmd.

Exons are spliced out from the pre-mRNA. MRNA processing does not occur in eukaryotes mRNA processing occurs in the cytosol after pre-mRNA is exported from the nucleus mRNA processing occurs co-transcriptionally mRNA processing occurs in the nucleus after transcription has terminated. Which of the following statements is true of eukaryotic transcription.

Which of the following choices properly matches the statements with the correct biological processes. 3 RNA contains the sugar ribose instead of deoxyribose. They bind to specific sites in an mRNA and then direct a sequential series of cuts and ligations the splicing necessary to process the mRNAs.

RNA polymerase I synthesizes mRNA. In eukaryotic cells a group of proteins involves in alternative splicing and maintaining gene regulation at the RNA levels is the serine- and arginine-rich proteins. O A 5 cap and 3 poly-A tail are added to protect the mRNA.

RNA polymerase only transcribes one side of. 1 RNA consists of one nucleotide chain. An RNA polymerase enzyme is.

Which of the following statements are true for eukaryotic cells. Splicing involves a number of small ribonuclear proteins snRNPs. DNA is stable beneath alkalic conditions whereas RNA isnt stable.

O Introns are translated into protein. Although transcription proceeds by the same fundamental mechanisms in all cells it is considerably more complex in eukaryotic cells than in bacteria. RNA polymerase I synthesizes rRNA.

A ii and iv b ii and iii c i and ii d i and iv. Iv Blue green algae are eukaryotic cells. Below are three statements.

Science Biology QA Library Which of the following is true about RNA synthesisa Synthesis of RNA is always in the 5 to 3 directionb RNA polymerase requires a primer for initiating transcriptionc U is inserted opposite T in transcriptiond New nucleotides are added on the 2-OH of the ribose sugar. Which of the following statements about eukaryotic RNA polymerases is TRUE. Which of the following is true of the timing of RNA processing.

Processing of the nascent mRNA may begin beforeits transcription is completec. The Three Eukaryotic RNA Polymerases The features of eukaryotic mRNA synthesis are markedly more complex than those of prokaryotes. Up to 10 cash back Transcription takes place in the cytoplasm.

The TATA-binding protein TBP binds to the TATA box sequence in eukaryotic promoters.

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