3'-TAC TGA GCA AGA TTA CAT ACT-5' Write down the mRNA sequence for the given DNA sense strand indicating the polarity. Derive the polypeptide from the mRNA molecule using the table of the genetic code (Table Q1 below) again indicating the polarity of the peptide chain. Indicate the position in the DNA molecule that could have caused the disease and write down all possible point mutations in the DNA sequence that could have caused it. [ The polypeptide chain is polymerized at the ribosomes using t-RNA molecules. Write down all possible t-RNA molecules with their anti-codons that are used to polymerize the amino acid VAL. Indicate the polarity. Explain what is meant by redundancy of the genetic code. Use an example to illustrate the redundancy.
3'-TAC TGA GCA AGA TTA CAT ACT-5' Write down the mRNA sequence for the given DNA sense strand indicating the polarity. Derive the polypeptide from the mRNA molecule using the table of the genetic code (Table Q1 below) again indicating the polarity of the peptide chain. Indicate the position in the DNA molecule that could have caused the disease and write down all possible point mutations in the DNA sequence that could have caused it. [ The polypeptide chain is polymerized at the ribosomes using t-RNA molecules. Write down all possible t-RNA molecules with their anti-codons that are used to polymerize the amino acid VAL. Indicate the polarity. Explain what is meant by redundancy of the genetic code. Use an example to illustrate the redundancy.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
Transcribed Image Text:Sickle cell anemia is a widespread disease in many African countries and can be caused by a
change in the amino acid sequence from glutamic acid to valine. A patient is diagnosed with
the disease and a genetic fingerprint reveals the following DNA sequence for the gene:
(a)
(b)
(c)
(d)
(e)
Write down the mRNA sequence for the given DNA sense strand indicating the
polarity.
Derive the polypeptide from the mRNA molecule using the table of the genetic code
(Table Q1 below) again indicating the polarity of the peptide chain.
Indicate the position in the DNA molecule that could have caused the disease and write
down all possible point mutations in the DNA sequence that could have caused it. [
The polypeptide chain is polymerized at the ribosomes using t-RNA molecules. Write
down all possible t-RNA molecules with their anti-codons that are used to polymerize
the amino acid VAL. Indicate the polarity.
3'-TAC TGA GCA AGA TTA CAT ACT-5'
Explain what is meant by redundancy of the genetic code. Use an example to illustrate
the redundancy.
First
Position
(5' end)
U
C
A
G
U
Phe
Phe
Leu
Leu
Leu
Leu
Leu
Leu
Table 1. The Codons of the Genetic Code
Second Position
A
Ile
Ile
Ile
Met-Start
Val
Val
Val
Val
Ser
Ser
Ser
Ser
Pro
Pro
Pro
Pro
Thr
Thr
Thr
Thr
Ala
Ala
Ala
Ala
Tyr
Tyr
Stop
Stop
His
His
Gln
Gln
Asn
Asn
Lys
Lys
Asp
Asp
Glu
Glu
G
Cys
Cys
Stop
Trp
Arg
Arg
Arg
Arg
Ser
Ser
Arg
Arg
Gly
Gly
Gly
Gly
Third
Position
(3' end)
U
C
A
G
U
C
A
G
U
C
A
G
U
C
A
G
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