Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 2SQ
A binding .site for RNA polymerase is called a ___ .
- a. gene
- b. promoter
- c. codon
- d. protein
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The sigma subunit of bacterial RNA polymerase _____.
a. binds to a bacterial gene’s promoter
b. is composed of both polypeptide and RNA molecules
c. is required for termination of transcription
d. is required for RNA polymerization
e. is required for ribosomal binding
Tightly coiled DNA is ________.
a.
known as hypermethylated
b.
translationally regulated
c.
transcriptionally inactive
RNA processinga. removes the exons, leaving only the introns.b. is the same as transcription.c. is an event that occurs after RNA is transcribed.d. is the rejection of old, worn-out RNA.e. All of these are correct.
Chapter 9 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 9 - A chromosome contains many different genes that...Ch. 9 - A binding .site for RNA polymerase is called a ___...Ch. 9 - An RNA molecule is typically ______; a DNA...Ch. 9 - RNAs form by_____; proteins form by ________. a....Ch. 9 - The main function of a DNA molecule is to ________...Ch. 9 - The main function of an mRNA molecule is to ___ ....Ch. 9 - Prob. 7SQCh. 9 - Prob. 1DAACh. 9 - Prob. 2DAACh. 9 - Prob. 3DAA
Ch. 9 - Prob. 4DAACh. 9 - Prob. 8SQCh. 9 - Anticodons pair with ___ . a. mRNA codons b. DNA...Ch. 9 - Up to ______ amino adds can be encoded by an mRNA...Ch. 9 - Prob. 11SQCh. 9 - Prob. 12SQCh. 9 - Prob. 13SQCh. 9 - Energy that drives translation is provided mainly...Ch. 9 - Match the terms with the best description. __...Ch. 9 - Researchers are designing and testing antisense...Ch. 9 - An anticodon has the sequence GCG. What amino acid...Ch. 9 - Each position of a codon can be occupied by one of...Ch. 9 - Prob. 4CTCh. 9 - Translate the .sequence of bases in the previous...Ch. 9 - Bacteria use the.same stop codons as eukaryotes....
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- When a ribosome reads a codon onmRNA, it must bind to the ____________of acorresponding tRNA.a. start codonb. stop codonc. intrond. exone. anticodonarrow_forwardIn RNA, ___________ pairs with adenine. A.Group of answer choices cytosine guanine thymine uracil B.The main differences between introns and exon is Group of answer choices Exons code for amino acids and Introns do not Introns code for RNA and exons code for DNA Introns code for amino acids and exons do not Introns enter the nucleus and exons leave the nucleusarrow_forwardMatch the terms with the best description.____ genetic message a. protein-coding segment____ promoter b. transcription begins here____ polysome c. read as base triplets____ exon d. removed before translation____ genetic code e. occurs only in groups____ intron f. 64 codons____ anticodon g. destroys ribosomes____ RIP h. often causes a frameshift____ deletion i. enzymatic RNA____ rRNA j. binds to a codonarrow_forward
- C. Sequence the following steps in protein synthesis from first to last (1-6)___A. Transciptions___B. tRNA - amino acid unite link to mRNA___C. Amino acid separate from tRNA ___D. Polypeptide chain assembled ___E. mRNA links to ribosome___F. Stop codon encountered in mRNAarrow_forwardPlease choose the correct answer. Which of the following statements is NOT true about reverse transcription? a. A tRNA primer initiates reverse transcription. b. The second DNA strand begins at the polypurine tract. c. Reverse transcriptase degrades the copied RNA segment. d. Circularizing the DNA allows completion of the second DNA strand.arrow_forward1.The Shine Dalgarno sequence is ____________. located in the 50S subunit of ribosome. located on the 16S rRNA component of the 30S subunit of ribosome. a sequence upstream of the AUG initiation codon on mRNA. a DNA consensus sequence in the promoter region of a gene. a signal for transcription termination.arrow_forward
- Transcription & Translation A. Describe mRNA splicing. B.How do mRNA and rRNA interact? C.How do mRNA and tRNA interact?arrow_forwardThe anticodon … A. is complementary to the mRNA B. is found on the ribosome C. is found on the tRNA D. A and Carrow_forwardA. rRNA is used to transfer amino acids to the ribosome. make up the large ribosomal subunit. make up the subunits of a ribosome. make up the small ribosomal subunit. B. When the full ribosome has bound to mRNA for the first time, the first codon (start codon) of the mRNA is in which site? It varies. P E Aarrow_forward
- 8) Which of these describes the function of RNA polymerase? A. Amplifies the “message" by making multiple copies of an mRNA molecule after it has been transcribed from DNA B. Converts a protein sequence to mRNAarrow_forwardWhat mRNA is transcribed from each DNA sequen а. 5'-GTTCTAС-3' 3'- -5' b. 5'-ATTTGAAA-3' 3'- -5' c. 5'-GCCTAAGGCT-3' 3'- -5' d. 5'-CGCGCTTTGTG-3' 3'- -5'arrow_forwardDuring RNA processing, the ____ of the intron is cut first. Internal A 3' end 5' end Lariatarrow_forward
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