HUMAN HEREDITY (LL)-W/MINDTAP ACCESS
11th Edition
ISBN: 9781305717022
Author: Cummings
Publisher: CENGAGE L
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Textbook Question
Chapter 9, Problem 16QP
Given the following tRNA anticodon sequence, derive the mRNA and the DNA template strand. Also, write out the amino acid sequence of the protein encoded by this message.
tRNA: UAC UCU CGA GGC
mRNA:
protein:
How many hydrogen bonds would be present in the DNA segment?
Expert Solution & Answer
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Use a codon chart determine the amino acid sequence. Remember to read through the strand and ONLY start
after the promoter and STOP when it tells you to stop. Follow example below:
Example:
DNA AGA TATA TAC CTC CGG TGG GTG CTT GTC TGT ATC CTT CTC AGT ATC
MRNA O
protein
AUG GAG GCC ACC CAC GAA CAG ACA UAG GAA GAG UCA UAG
start-glu-ala-thre-hist - asp-glu-threo-stop
met
DNA CCT ATA TAC ACA CGG AGG GTA CGC TAT TCT ATG ATT ACA CGG TTG CGA TCC ATA ATC
mRNA DGGA UAU) AUG uGul Gcc nccl cAul GCol
protein ly Tur MeT cys
AlA ser
HIJ Ala
2
3
4
DNA AGA ACT ATA TAC CTC TTA ACA CTC TAA AGA CCA GCA CTC CGA TGA ACT GGA GCA
mRNA
protein
DNA TAT ATAC CTT GGG GAA TAT ACA CGC TGG CTT CGA TGA ATC CGT ACG GTA CTC GCC ATC
mRNA
protein D
DNA TAA ACT ATA TAC CTA GCT TAG ATC TAA TTA CCC ATC
mRNA
protein
Auu UGA UAU AGU GAUCGA AUC MAG Auu AAU
leu Stop. TRY-Met-Asp- ARG-Isle-Stop-Ile. Asn
DNA CTA TTT ATA TAC TAG AGC GAA TAG AAA CTT ATC ATC
mRNA
protein D
DNA CAT ATA TAC CTT AGT TAT CCA TTG ACT CGA ATT GTG CGC TTG…
Given the following mRNA and amino acids, construct a polypeptide from this tRNA strand.
tRNA UAA CCA UUA UAA mRNA Amino Acids
AUU = isoleucine
AAU = asparginine
GGU = glycine
GUC = valine
GAG = glutamic acid
Consider the mRNA sequence below. Assume that the following mRNA segment has been translated.
5'-GCAAGUCUUAAU-3'
Note for numbers 1 and 2: Use the three-letter abbreviation of amino acid; separate amino acids with a hyphen: do
not include the stop codon.
Example: ala-cys-glu
1. Using the table of the genetic code, determine the sequence of amino acids. ala-ser-leu-asn
2. If mutation occurs by substitution of the 6th nucleotide with adenosine-5'- monophosphate, what is the resulting
amino acid sequence?
3. What type of mutation occurred? Choose from same sense, missense and non-sense.
Chapter 9 Solutions
HUMAN HEREDITY (LL)-W/MINDTAP ACCESS
Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9.6 - Antibiotics and Protein Synthesis Antibiotics are...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - There have been recurring cases of mad-cow disease...Ch. 9 - The Link Between Genes and proteins The genetic...Ch. 9 - Define replication, transcription, and...Ch. 9 - If the genetic code used 4 bases at a time, how...Ch. 9 - If the genetic code uses triplets, how many...Ch. 9 - What is the start codon? What are the stop codons?...
Ch. 9 - Is an entire chromosome made into an mRNA during...Ch. 9 - The promoter and terminator regions of genes are...Ch. 9 - The following segment of DNA codes for a protein....Ch. 9 - What are the three modifications made to pre-mRNA...Ch. 9 - The pre-mRNA transcript and protein made by...Ch. 9 - Briefly describe the function of the following in...Ch. 9 - Prob. 12QPCh. 9 - Determine the percent of the following gene that...Ch. 9 - How many kilobases of the DNA strand below will...Ch. 9 - Prob. 15QPCh. 9 - Given the following tRNA anticodon sequence,...Ch. 9 - Given the following mRNA, write the...Ch. 9 - The following is a portion of a protein:...Ch. 9 - Below is the structure of glycine. Draw a...Ch. 9 - Indicate in which category, transcription or...Ch. 9 - Prob. 21QPCh. 9 - Polypeptide folding is often mediated by other...Ch. 9 - Do mutations in DNA alter proteins all the time?Ch. 9 - a. Can a mutation change a proteins tertiary...
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