mRNA molecules carry _______ from the nucleus to the cytoplasm.

a. ribosomal subunits b. amino acids c. protein assembly instructions d. introns e. all of the above

Expert Solution

Answer: Option C is correct

Explanation:

mRNA = Messenger RNA

mRNA contains codon sequences that specify the amino acid sequence in the polypeptide.

Each codon in the mRNA is a triplet and specifies a single amino acid.

Ex: GGG codes for glycine.

In eukaryotes, mRNA is synthesized in the nucleus (transcription). It is exported out of the nucleus into the cytosol for protein synthesis (Translation).

In prokaryotes, there is no nuclear membrane. SO, cotranscriptional-translation can be observed.

gladiator answered 2 years ago

Which of the following is not true regarding mRNA splicing and mRNA export from the nucleus?...

Which of the following is not true regarding mRNA splicing and mRNA export from the nucleus? A. Spliced mRNA are exported with the assistance of the Ran pathway. B. An mRNA that undergo splicing is exported more rapidly than an identical mRNA which has the intron genetically removed. C. All of the given answers are true. D.Exon junction complexes assist in mRNA export. the answer for this is not C. The CRISPR/Cas system used in labs to modify many different...

What is the function of a nucleus? What is the function of the cytoplasm?

What is the function of a nucleus? What is the function of the cytoplasm? What is the function of a cell membrane? What is the function of a cell wall? What is the function of a central vacuole in plants? What is the function of a chloroplast? What is cytoplasmic streaming? What causes cytoplasmic streaming? Why is it useful? What happened after you added the salt solution to the elodea leaf? What happened after you flushed away the salt solution?

Why is actively translated mRNA more stable in the cytoplasm, whereas non actively translated mRNA is...

Why is actively translated mRNA more stable in the cytoplasm, whereas non actively translated mRNA is rapidly degraded?

How do molecules enter the nucleus? What types of molecules enter the nucleus? Describe in detail...

How do molecules enter the nucleus? What types of molecules enter the nucleus? Describe in detail how fluorescence works. What is quenching and how is it used to a researcher’s advantage? What are cell markers? Describe how cell markers were used in the article.

…….is the division of the cell's cytoplasm while……is the division of cell's nucleus Interphase--mitotic phase...

…….is the division of the cell's cytoplasm while……is the division of cell's nucleus Interphase--mitotic phase Cytokinesis--mitosis Mitotic phase-interphase Mitosis--cytokinesis

A. Discuss how nuclear import receptors such as importin function to carry proteins into the nucleus....

A. Discuss how nuclear import receptors such as importin function to carry proteins into the nucleus. Discuss: 1) how nuclear import receptors choose proteins for import: 2) the mechanism by which they get into the nucleus, including any other structures, molecules or molecular interactions involved; and 3) the mechanism by which nuclear proteins are released into the nucleus, as well as any important molecular interactions that are necessary for this process

Describe the role of each of the following molecules during gene expression. A. mRNA B. tRNA...

Describe the role of each of the following molecules during gene expression. A. mRNA B. tRNA C. rRNA D. Ribsomes E. snRNPS/Spliceosome

Can you explain why eukaryotic mRNA should undergo processing first before leaving the nucleus? (7 marks)

Can you explain why eukaryotic mRNA should undergo processing first before leaving the nucleus?

A mammalian cell nucleus contains 4.0 x 10 ^ 3 molecules of protein X (molecular weight...

A mammalian cell nucleus contains 4.0 x 10 ^ 3 molecules of protein X (molecular weight 6.0 x 10 ^4). Assume the nucleus is a sphere with diameter of 5.0 microns. Calculate the following: A) the molarity of protein X in the nucleus B) the mass (in grams) of protein X in one nucleus. Please show work.

Glycolysis 1. How are reducing equivalents from NADH generated in glycolysis in the cytoplasm transported into...

Glycolysis 1. How are reducing equivalents from NADH generated in glycolysis in the cytoplasm transported into the mitochondrion resulting in the formation of NADH within the inner mitochondrial membrane? Thank you, I'm having trouble locating this answer in my notes/text book

Question