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Name: Quick help Only cell biologyWrite down the RNA processing steps that m
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Description: Quick help Only cell biologyWrite down the RNA processing steps that mRNA should go through before it can be exported from nucleus to the cytosol.

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Biology

Quick help Only cell biology Write down the RNA processing steps that mRNA should go through before it can be exported from nucleus to the cytosol.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter15: Genes And Proteins

Section: Chapter Questions

Problem 15RQ: A scientist identifies a pre-mRNA with the following structure. What is the predicted size of the...

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Synthesize a Protein Below is a region of a gene. Transcribe the gene into a pre-mRNA strand. DNA C T A T T G C A C C T G A G T C C A mRNA What is the name of the enzyme which catalyzes this reaction? _________________________________ What three things must then happen to the pre-mRNA you just synthesized before it is allowed to exit the nucleus?
VISUAL SKILLS A segment in the middle of an mRNA has thesequence 5¿-AGAGAACCGCGA-3¿. Using the codon table, translate thissequence, assuming the first three nucleotides are a codon.
VISUALIZE Sketch a pyrimidine nucleotide subunit that would be found only in RNA. Circle and label the three components that make up this type of nucleotide. Explain what changes in the functional groups of this subunit would have to occur for it to be found in a DNA molecule.
Let’s practice making a strand of mRNA. Finish what we started: DNA: T-A-C-T-T-A-C-A-C-G-T-C-A-A-C-G-T-G-C-C-T-T-A-G-C-C-A-T-TmRNA: A-U-GGo ahead and write out the complementary strand of mRNA above
Select all that apply Choose the two nucleotides that are typically used prokaryotes as the first sucleotide in the RNA transcript. GTP Остр ПАТР
Which choice best fits the blank? Refer to picture. The ribosome moves along the mRNA strand. In panels b, c, and d, new tRNAs carrying ___________. match up with the codons of the mRNA strand. After each tRNA locks into place, a peptide bond forms between the amino acid the tRNA is carrying and the amino acid already there. This process repeats until the end of the sequence is reached. A. ProteinsB. NucleotidesC. Amino Acids
mRNA Comparison A scientist studies the production of a key digestive enzyme in silk moths. The moths have one gene for this enzyme, and the scientist extracts mRNA transcribed from this gene as well as protein translated from it. The gene has three introns in its sequence. Use the passage to answer the question. Part A: If the researcher compares mRNA from inside the nucleus to mRNA from the ribosomes, what will be found? A. less mRNA in the nucleus B. shorter mRNA in the ribosomes C. identical mRNAs in both places D. mRNA covalently attached to protein in the nucleus Part B: Use the passage to answer the question. If the same scientist extracts the DNA for this gene and finds that it becomes methylated over the life of the organism, how will digestion change over time? A. It will occur at lower pH. B. It will rely more on this enzyme over time. C. It will use methylated copies of the enzyme. D. It will involve a lesser quantity of this enzyme over time.
Now try this example yourself. Fill in the complementary mRNA sequence to the DNA sequence listed below: DNA sequence = C A T G C A C C G T T A C G A RNA sequence =
After viewing https://www.youtube.com/watch?v=qIwrhUrvX-k , relate the structure of the three RNA to their function in building of Polypeptide and point out the characteristics of a genetic code and their function in translation. 1. Messenger RNA 2. Transfer RNA 3. Ribosomal RNA
BIOLOGY ACTIVITY -Gene Mutations and Proteins Objective: To demonstrate how gene mutations affect the production of proteins? Procedure: Use the following base sequence of one strand of an imaginary DNA molecule: AATTGAACACATGCGCCC. 2. Write the base sequence for an mRNA strand that would be transcribed from the given DNA sequence. Place your results in the table below. Use your codon table provided below to determine the sequence of amino acids in the resulting protein fragment. Place your results in the table below. If the fifth base in the original DNA strand were changed from G to C, how would this affect the resulting protein fragment? Write the new protein fragment in the table below. If G were added to the original DNA strand after the third base, what would the resulting mRNA look like? How would this addition affect the protein? Show your results in the table below. Data: mRNA from Step 2 Protein Sequence from Step 3 Protein Sequence from Step…
If mRNA can be blocked, what would the consequences be? Critically thinking about this, what applications could this be useful when treating diseases? You can be as wild as you like here, as long as you are using fact as the foundation of your post!
Pretend you are a ribosome that is going to translate the following mature mRNA sequence into a polypeptide chain. What are the first five amino acids encoded in this mature mRNA sequence?…