Messenger RNA Select one: a. carries information that specifies which protein is to be made. b. supplies amino acids to the site of protein synthesis. c. carries the newly formed protein out of the nucleus of the cell. d. is the form of RNA that goes from the DNA to the ribosome.

Messenger RNA Select one: a. carries information that specifies which protein is to be made. b. supplies amino acids to the site of protein synthesis. c. carries the newly formed protein out of the nucleus of the cell. d. is the form of RNA that goes from the DNA to the ribosome.

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Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 11QP: Briefly describe the function of the following in protein synthesis. a. rRNA b. tRNA c. mRNA

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1. The SRP is recognized by the SRP receptor. 2. The ribosome translates the protein through the translocon and into the ER lumen. 3. The ribosome attaches to the translocon. 4. Chaperones assist in the proper folding of the protein. 5. The signal peptide on the nascent polypeptide is synthesized by the ribosome and recognized by the SRP (signal recognition protein). A. 5, 3, 1, 2, 4 OB. 1, 5, 4, 3, 2 C. 5, 1, 3, 2, 4 OD. 1, 2, 3, 4, 5 E. 1, 5, 3, 2, 4 QUESTION 32 The side of the Golgi stack orientated towards the endoplasmic reticulum is the OA. cis-Golgi network B. trans-Golgi network OC. vesicle OD. medial-Golgi QUESTION 33 Which molecule is displaced when a vesicle and its target membrane fuse? A. Water OB. Cholesterol OC. Phospholipids D. DNA OE. SNARES 2. 2.
For each of the following, identify the type of RNA involved (mRNA, rRNA, or tRNA). a. Transports the correct amino acid to the ribosome, using the information encoded in the mRNA. b. Is a major component of ribosomes. c. Speciﬁes the order of amino acids in a protein, using a series of three-base codons, where different amino acids are speciﬁed by particular codons. d. Contains a three-base anticodon that pairs with a complementary codon revealed in the mRNA. e. Assists in making the bonds that link amino acids together to make a protein.
Match the type of RNA with it's function A. Creates the Ribosome, or work table to pull amino acids together? [ Choose ] rRNA mRNA tRNA B.Carries or "Transfers" amino acids from the cytoplasm to the ribosome [ Choose ] rRNA mRNA tRNA C. Is the copy of DNA from the nucleus, therefore bringing the "message" concerning what protein to build [ Choose ] rRNA mRNA tRNA
Arrange the statements in their proper order by writing the corresponding letter (e.g. A) for each statement in the space provided below. A. The single-stranded RNA would complement the target RNA. B. Gene expression is inactivated once the mRNA is no longer accessible for translation. C. The risk-induced silencing complex which is composed of RNA and protein subunits is formed. D. Double-stranded, non-coding RNA is cleaved by Dicer. E. The mRNA can be cleaved or remain bound by the RISC. 1. 2. 3. 4. 5.
Choose the correct function of tRNA. A. TRNAS are an intermediate stage of RNA processing where introns have been removed but polyadenylation has not occurred yet B. TRNAS are small RNAS that regulate gene expression C. TRNAS bring amino acids to the ribosome for addition to the growing polypeptide chain D. tRNA is a major structural component of the ribosome
If you imagine a messenger RNA molecule in the cytoplasm of a cell, which of the following will likely affect how much protein is made by translation of this message? A. The presence of appropriate snRNPs. B. The length of the polyA tail. C. The strength of hydrogen bonds holding the mRNA to ribosomal RNA. D. The ability of the mRNA to pair with itself to form a helix-turn-helix structure.
Each of the following statements about protein synthesis is false.Correct each to make a true statement. a. In a gene, each nucleotide specifies one amino acid in a protein sequence. b. A transcription factor must bind to the promoter region of a gene before the enzyme DNA synthetase is able to bind and begin transcription. c. The enzyme RNA polymerase builds a strand of transfer RNA, whose codons are complementary to DNA’s triplets. d. Proteins destined for secretion from the cell enter the nucleus after translation, to be folded and modified. e. During translation, amino acids are delivered by the messenger RNA transcrip
3. Given the following DNA molecule: 3' T 5' cG G T АА А АСТ А | | | | | | | | | | | АT G C САТ ТТТGА 5' - A 3.
A few genes produce regulatory molecules that help the cell assemble proteins. The journey from gene to protein is complex and tightly controlled within each cell. Which of the following statements best describes the role of DNA and RNA in protein synthesis? * A. DNA is the primary genetic material contained within a cell. B. DNA is the long-term storage while RNA is the messenger containing instruction from DNA C. DNA creates protein during protein synthesis & converts it into usable molecules while RNA assembles amino acid into a protein. D. All of the above. Humans and chimpanzees share many common characteristics. How would you explain the similarities of the amino acid sequences that can be found in both organisms? * A. Two groups share a relatively common ancestor B. Humans evolved from chimpanzees C. Two groups belong to the same species D. Chimpanzees evolved from…
Briefly describe the function of the following in protein synthesis. a. rRNA b. tRNA c. mRNA
Which of the following is true of ribosome rescue? (C & E wrong) A. The process produces a protein that is tagged for degradation. B. Proteases enter the A-site of the ribosome to degrade the C-terminus of the synthesized peptide. C. A partially translated mRNA becomes fully degraded before it can be translated further. D. No protein is produced in the process. E. Stalled ribosomes are released in the absence of a stop codon.
The addition of the poly-A tail adds more than 200 units of adenine to the strand of mRNA, yet no protein has a continuous line of more than 200 phenylalanines in its structure. Why is this so? A. RNA splicing occurs and removes the noncoding sequences. B. The poly-A tail and 5' GTP cap do not translate into proteins. C. The adenines are reabsorbed by the cell and help to form other forms of RNA. D. The tRNA does not recognize the poly-A tail.