/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 20 What amino acid sequence is code... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 26: Problem 20

What amino acid sequence is coded for by the mRNA base sequence CUC-AUU-CCA- UGC-GAC-GUA?

Short Answer

Expert verified
The amino acid sequence is Leucine, Isoleucine, Proline, Cysteine, Aspartic Acid, Valine.

Step by step solution

01

Understand the mRNA Sequence

The given mRNA sequence is a series of codons. Each codon, a set of three nucleotides, corresponds to a specific amino acid. Here, the sequence is CUC-AUU-CCA-UGC-GAC-GUA.
02

Use the Genetic Code Chart

We need to refer to a genetic code chart that shows which amino acid each codon codes for. This is an essential tool for translating mRNA sequences into amino acid sequences.
03

Translate Each Codon

Using the genetic code chart: - CUC codes for Leucine (Leu) - AUU codes for Isoleucine (Ile) - CCA codes for Proline (Pro) - UGC codes for Cysteine (Cys) - GAC codes for Aspartic Acid (Asp) - GUA codes for Valine (Val) We translate each of these mRNA codons into their corresponding amino acids.
04

Write the Amino Acid Sequence

The amino acids as translated from each codon in sequence are: Leucine, Isoleucine, Proline, Cysteine, Aspartic Acid, and Valine. These are written in the order corresponding to their codons.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Amino Acid Sequence
The amino acid sequence is the precise order of amino acids in a protein chain. This sequence determines the protein's structure and function. In the genetic code, each amino acid is represented by three letters corresponding to a sequence of bases in the mRNA. An example would be the sequence derived from the mRNA code CUC-AUU-CCA-UGC-GAC-GUA. This sequence translates to specific amino acids: Leucine, Isoleucine, Proline, Cysteine, Aspartic Acid, and Valine.
  • Each amino acid is coded by specific codons in the mRNA.
  • Translation of mRNA codons to amino acids is essential for protein synthesis.
  • The sequence affects how a protein will fold and what function it will perform in the cell.
mRNA Translation
mRNA translation is the biological process where the genetic code from a messenger RNA (mRNA) molecule is used to build proteins. It involves several key stages:
  • Initiation: The ribosome assembles around the target mRNA. The first codon, often AUG, starts the process of protein synthesis.
  • Elongation: The ribosome travels along the mRNA, decoding the sequence of nucleotides into amino acids. This is continuously done for each set of three nucleotides (code) or codons.
  • Termination: Translation ends when a stop codon is reached. This signals the ribosome to release the newly formed protein.
Translation is facilitated by the ribosome, a complex molecule made up of ribosomal RNA and proteins. This process is crucial because it turns the information from the genetic code into functional proteins that perform various tasks in living organisms.
Codons
Codons are sequences of three mRNA nucleotides that correspond to specific amino acids or provide signaling during the process of protein synthesis. There are 64 possible codon combinations in the genetic code, but only 20 amino acids. Thus, each amino acid can be encoded by multiple codons, a property known as redundancy or degeneracy in the genetic code.
  • Each codon matches one particular amino acid or serves a start/stop function.
  • The start codon (AUG) initiates translation and encodes for Methionine.
  • Stop codons (UAA, UAG, UGA) signal the end of protein synthesis.
  • This redundancy ensures that genetic information is robust against mutations.
Understanding codons is fundamental to genetic translation and mutation studies, offering insights into genetic diseases and development within the field of bioinformatics.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Why is more than one replication fork needed when human DNA is duplicated?

Human and horse insulin are both composed of two polypeptide chains with one chain containing 21 amino acids and the other containing 30 amino acids. Human and horse insulin differ at two amino acids: position 9 in one chain (human has serine and horse has glycine) and position 30 on the other chain (human has threonine and horse has alanine). How must the DNA differ to account for this? Identify the \(5^{\prime}\) and \(3^{\prime}\) ends of the four trinucleotide complementary DNA sequences.

What amino acids are specified by the following codons? (a) \(\mathrm{C}-\mathrm{C}-\mathrm{C}\) (b) \(\mathrm{G}-\mathrm{C}-\mathrm{G}\) (c) \(\mathrm{U}-\mathrm{U}-\mathrm{A}\)

(a) DNA and RNA, like proteins, can be denatured to produce unfolded or uncoiled strands. Heating DNA to what is referred to as its "melting temperature" denatures it (the two strands of the double helix become separated). Why does a longer strand of DNA have a higher melting temperature than a shorter one? (b) The DNA melting temperature also varies with base composition. Would you expect a DNA with a high percentage of G-C base pairs to have a higher or lower melting point than one with a high percentage of A-T base pairs? How do you account for your choice?

What is the difference between a gene and a chromosome?
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Analysis

Read Explanation

Chemical Reactions

Read Explanation

Chemistry Branches

Read Explanation

Organic Chemistry

Read Explanation

Inorganic Chemistry

Read Explanation

Making Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.