BIOLOGY VOL.1 W/CONNECT PLUS ACCESS
3rd Edition
ISBN: 9781259303784
Author: BROOKER
Publisher: MCG CUSTOM
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Chapter 12, Problem 3TY
Summary Introduction
Introduction: The structural gene is required for producing structural components of our body. Everything that an individual is made of, every enzyme, blood and body parts are made upon the blueprint of genes. Hence functional product can catalyze a reaction or can perform various other functions in our body. The genetic framework allows differential expression of gene to create diversity between different cells.
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Each ribosomal subunit is composed of
a. multiple proteins. c. tRNA.
b. rRNA. d. both a and b.
The anticodons are located in a.tRNA. b.rRNA. c.mRNA. d.ribosomes. e.endoplasmic reticulum.
Which of the following is true about the three major classes of RNAs in the cell: mRNAs, tRNAs, and rRNAs?
A. mRNAs encode polypeptide chains.
B. tRNAs are structural components of the ribosome.
C. rRNAs are adapter molecules that translate the information on an mRNA into a polypeptide sequence.
D. mRNAs can also encode tRNAs and rRNAs.
Chapter 12 Solutions
BIOLOGY VOL.1 W/CONNECT PLUS ACCESS
Ch. 12.1 - What disease would result if a person inherited...Ch. 12.1 - Prob. 2CCCh. 12.1 - What is the direction of flow of genetic...Ch. 12.2 - Prob. 1CCCh. 12.2 - Core Skill: Connections Look back at the role of...Ch. 12.3 - Prob. 1CCCh. 12.4 - Prob. 1CCCh. 12.4 - Prob. 2CCCh. 12.4 - Prob. 1EQCh. 12.4 - Prob. 2EQ
Ch. 12.4 - Prob. 3EQCh. 12.5 - Prob. 1CCCh. 12.5 - Core Skill: Connections Look back at Figure 6.3,...Ch. 12.5 -
Figure 12.17 Comparison of small subunit rRNA...Ch. 12.6 - Prob. 1CCCh. 12 - Which of the following best represents the central...Ch. 12 - A mutation prevents a gene from being transcribed...Ch. 12 - Prob. 3TYCh. 12 - Prob. 4TYCh. 12 - If a eukaryotic mRNA failed to have a cap attached...Ch. 12 - Prob. 6TYCh. 12 - Prob. 7TYCh. 12 - During the initiation of translation, the first...Ch. 12 - Prob. 9TYCh. 12 - Prob. 10TYCh. 12 - Prob. 1CQCh. 12 - Prob. 2CQCh. 12 - Prob. 3CQCh. 12 - Prob. 1COQCh. 12 - Prob. 2COQ
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- Which of the following BEST describes the characteristics and function of siRNA? A. a short strand of RNA that can complement and inactivate a sequence of mRNA B. a short strand of RNA that can act as a transcription factor to initiate transcription C. a strand of DNA that can bind to and inactivate an mRNA sequence D. a tRNA that is not able to attach to a ribosome and therefore inhibits the process of translationarrow_forwardWhich of the following is the definition of a gene? A. RNA that delivers amino acids to a ribosome during translation B. A unit of information encoded in the sequence of nucleotide bases in DNA C. The RNA component of ribosomes D. RNA that carries a protein-building messagearrow_forwardThe enzyme Aminoacyl tRNA synthetase a. is very specific, recognizes only amino acids b. adds amino acids to the tRNA anticodon c. is very specific, there is only one enzyme per cell d. is very specific, recognizes only one amino acidarrow_forward
- 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.arrow_forwardA type of RNA that has a “clover-leaf shape” with three hairpin loops. A.hnRNA B.rRNA C.mRNA D.More than 2 answers E.None of thesearrow_forwardThere are 61 mRNA codons that specify an amino acid, but only 45 tRNAs. This is best explained by the fact that A. some tRNAs have anticodons that recognize two or more different codons. B. the rules for base pairing between the third base of a codon and tRNA are flexible. C. many codons are never used, so the tRNAs that recognize them are dispensable. D. A and B only E. A, B, and Carrow_forward
- During translation, the codon in mRNA is actually “read” by a. the A site in the ribosome. b. the P site in the ribosome. c. the anticodon in a tRNA. d. the anticodon in an amino acid.arrow_forwardWithin a cell, the amount of protein made using a given mRNA molecule depends partly on A. the presence of certain transcription factors. B. the rate at which the mRNA is degraded. C. the degree of DNA methylation. D. the number of introns present in the mRNA. please explain which is correct and incorrect and whyarrow_forwardThe portion of a gene that will be expressed in a protein is called a(an) a. Exon b. Intron c. promoter d.TATA boxarrow_forward
- Which of these descriptions of rRNA is true? a.It is single-stranded. b.It catalyzes steps in protein synthesis. c.It forms part of the structure of both subunits of a ribosome. d.It is produced in the nucleolus. e.All of these are true.arrow_forwardDefine the following terms: a. rRNA b. tRNA c. mRNA d. siRNA e. miRNAarrow_forwardA single RNA molecule with many gene sequences… a. is only found in eukaryotes b. is not translated c. will not have ribosome binding sites d. is polycistronic RNA e. is a polysomearrow_forward
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