Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Question
Chapter 9, Problem 11SQ
Summary Introduction
Introduction: After transcription, mRNA sequences are read by tRNA in the ribosome to synthesize polypeptide, and the process is known as translation. The mRNA sequences are read as triplets known as codons that code for an amino acid. The tRNA molecules have an anticodon that pairs with its complementary codon during translation. As a result, the codon-specific amino acid comes through the other end of the tRNA. These amino acids form a polypeptide chain.
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a. Give the sequence of mRNA that would be transcribed off of the bottom strand and label its 5' and 3' ends.
b. translate this RNA sequence in 1a into a protein sequence
c. Give the sequence of mRNA that would be transcribed off of the top strand and label its 5' and 3' ends.
d. Translate this RNA sequence in 1c into a protein sequence
Which statement BEST DESCRIBES the genetic code?
A. There can only be one codon for multiple amino acids.
B. There are only 10 different amino acids in proteins.
C. More than one codon for a specific amino acid.
D. The genetic is misinterpreted to have U instead of T.
What is the role of Proteinase K in DNA isolation?
A. Inhibit enzymes
B Catalyze breakdown of nuclei acids
C Degrade proteins
D Remove disultide bongs in proteins
Chapter 9 Solutions
Biology: The Unity and Diversity of Life
Ch. 9 - RIPs as Cancer Drugs Researchers are taking a page...Ch. 9 - RIPs as Cancer Drugs Researchers are taking a page...Ch. 9 - RIPs as Cancer Drugs Researchers are taking a page...Ch. 9 - RIPs as Cancer Drugs Researchers are taking a page...Ch. 9 - A chromosome contains many different genes that...Ch. 9 - A binding .site for RNA polymerase is called a ___...Ch. 9 - In cells, most RNA molecules are ___ ; most DNA...Ch. 9 - Prob. 4SQCh. 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. 8SQCh. 9 - Prob. 9SQCh. 9 - Anticodons pair with ___ . a. mRNA codons b. DNA...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 - Can you .spell your name (or someone else's) using...Ch. 9 - Bacteria use the.same stop codons as eukaryotes....
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Similar questions
- How do we call the type of point mutation in which an A->U change occurs in the codon for the sixth amino acid in hemoglobin chain b? a) Inversion b) Transversion c) Transition d) Transaminationarrow_forwardWhich type of mutation produces the same protein despite a change in the DNA? A. nonsense B. missense C. silent D. frameshiftarrow_forwardWhich statement regarding UTRs is TRUE? a) Transcription begins at the start of the 5' UTR b) Translation begins at the start of the 5' UTR c) The 5' and 3' UTRs are spliced from the mRNA transcript d) The translation stop codon is found downstream of the 3' UTRarrow_forward
- What do genetic engineers use to create the “sticky ends” needed to splice two fragments of DNA together? a.) an amino acid sequence b.) DNA ligase c.) restriction enzymes d.) mRNAarrow_forwardWhat is the role of transcription in the determination of the amino acid sequence of a polypeptide chain? A. It pairs anticodons and codons. B. It synthesizes an mRNA strand. C. It duplicates the information in DNA. D. It decodes the information from mRNA.arrow_forwardA promoter is ______. a. a specific sequence of DNA nucleotides b. a specific sequence of RNA nucleotides c. a protein that binds to DNA d. an enzyme that synthesizes RNAarrow_forward
- In Eukaryotes, DNA is a long molecule inside a tiny nucleus. a. How can this long chain fit in such space? b. How does it affect gene expression?arrow_forwardA scientist isolates some mRNA from one gene and compares its sequence to that of the gene from which it was copied. Where will the mRNA be found to end? A. at the promoter B. at an intron C. at the stop codon D. at an enhancerarrow_forwardWhich event contradicts the central dogma of molecular biology? a. Poly-A polymerase enzymes process mRNA in the nucleus. b. Endonuclease enzymes splice out and repair damaged DNA. c. Scientists use reverse transcriptase enzymes to make DNA from RNA. d. Codons specifying amino acids are degenerate and universal.arrow_forward
- How are rare bases incorporated into tRNAs? a. Encoded by guide RNAs b. By chemical changes to one of the standard bases c. Encoded by rare bases in DNA d. Encoded by sequences in intronsarrow_forwardWhich rRNA plays a major role in the aligning of the transcript in the ribosome of prokaryotes? A. 28S rRNA B. 23S rRNA C. 16S rRNA D. 18S rRNAarrow_forwardA student wants to observe how the environment of bacteria affects gene expression. How should the experiment be designed? A. exposing the same species of bacteria to the same carbohydrates in each sample B. exposing the same species of bacteria to different carbohydrates in each sample C. exposing different species of bacteria to the same carbohydrates in each sample D. exposing different species of bacteria to different carbohydrates in each samplearrow_forward
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