EBK BIOLOGY
5th Edition
ISBN: 9780100667976
Author: Maier
Publisher: YUZU
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Question
Chapter 9, Problem 2LTB
Summary Introduction
To write:
The amino acid sequence produced from the mRNA
Introduction:
The mRNA consists of many bases. A collection of three bases that has the capability to code for a particular amino acid is called codon. Codons are present in the mRNA. These codons attach with the anticodon part of tRNA to synthesize amino acid. The anticodon part of tRNA is complementary to the codon part of mRNA. As a result, these two join together and undergo a process called translation to produce amino acids.
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Use the following DNA sequence, and write the resulting messenger RNA sequence TACTTTGAATGCGGCCGTATC?
The following RNA sequence represents a small messenger which can be translated in a prokaryotic cell:
5'-ACGAAUGCACAGUAAAACUGGCUAGCGUAGGCUGA-3
Assume that the messenger RNA is translated in the cell, using the correct machinery and signals
required for accurate protein synthesis. Using this RNA sequence and the Genetic Code Dictionary (see
your textbook for the dictionary), solve the following problems
A. Write the sequence of a protein that would be translated from this mRNA, using the appropriate stop and start
signals, and indicating the correct termini of the protein product.
B. Suppose that the underlined A in the sequence is changed to a U. Write the expected protein product of this
mRNA.
Determine the amino acid sequence for a polypeptide coded for by the following mRNA transcript (written 5'-> 3'):
AUGCCUGACUUUAAGUAG
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