BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
9th Edition
ISBN: 9781319425746
Author: BERG
Publisher: MAC HIGHER
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Question
Chapter 31, Problem 38P
Interpretation Introduction
Interpretation:
The purpose of the large size of tRNA should be determined.
Concept introduction:
ThetRNA (transfer ribonucleic acid) is a type of RNA, which decodes mRNA into a protein sequence. During the process of translation, tRNAs bind to specific sites on the ribosome. For each codon on mRNA, there is an anticodon on tRNA. Binding of these two RNAs helps in the proper synthesis of proteins.
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An extra piece. In one type of mutation leading to a form of
thalassemia, the mutation of a single base (G to A) generates a new 3'
3' splice site (blue in the illustration below) akin to the normal one
(yellow) but farther upstream.
Normal 3' end
of intron
5' CCTATTGGTCTATTITCCACCCITAGGCTGCTG 3'
5' CCTATTAGTCTAIIIICCACCCTTAGGCTGCTG 3'
What is the amino acid sequence of the extra segment of protein
synthesized in a thalassemic patient having a mutation leading to
aberrant splicing? The reading frame after the splice site begins with
TCT.
How many sites? A researcher has isolated a restriction endonuclease that cleaves at only one particular 10-base-pair site. Would this enzyme be useful in protecting cells from viral infections, given that a typical viral genome is 50,000 base pairs long? Explain
Be sure to answer all parts.
Write a possible mRNA sequence that codes for each peptide.
a. His-Cys-Tyr-Val-Ser
5¹-
b. Phe-Val-Thr-Tyr-Glu
5'-
5'-
c. Trp-Phe-Asn-Gln
-3'
U
-3'
с
Table 26.2 The Genetic Code-Triplets in Messenger RNA
First Base
(5' end)
-3'
U
UUU
UUC
UUA
UUG
CUU
CUC
CUA
CUG
AUL
Phe
Phe
Leu
Leu
Leu
Leu
Leu
Leu
la
C
UCU
UCC
UCA
UCG
CCU
CCC
CCA
CCG
Second Base
A
UAU
UAC
UAA
UAG
CAU
CAC
CAA
CAG
Ser
Ser
Ser
Ser
Pro
Pro
Pro
Pro
Tyr
55
Tyr
Stop
Stop
His
His
Gin
Gin
G
UGU
UGC
UGA
UGG
CGU
CGC
CGA
CGG
Cys
Cys
Stop
Trp
Arg
Arg
Arg
Arg
Third Base
(3¹ ond)
DUAC DU AG
с
А
А
Chapter 31 Solutions
BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
Ch. 31 - Prob. 1PCh. 31 - Prob. 2PCh. 31 - Prob. 3PCh. 31 - Prob. 4PCh. 31 - Prob. 5PCh. 31 - Prob. 6PCh. 31 - Prob. 7PCh. 31 - Prob. 8PCh. 31 - Prob. 9PCh. 31 - Prob. 10P
Ch. 31 - Prob. 11PCh. 31 - Prob. 12PCh. 31 - Prob. 13PCh. 31 - Prob. 14PCh. 31 - Prob. 15PCh. 31 - Prob. 16PCh. 31 - Prob. 17PCh. 31 - Prob. 18PCh. 31 - Prob. 19PCh. 31 - Prob. 20PCh. 31 - Prob. 21PCh. 31 - Prob. 22PCh. 31 - Prob. 23PCh. 31 - Prob. 24PCh. 31 - Prob. 25PCh. 31 - Prob. 26PCh. 31 - Prob. 27PCh. 31 - Prob. 28PCh. 31 - Prob. 29PCh. 31 - Prob. 30PCh. 31 - Prob. 31PCh. 31 - Prob. 32PCh. 31 - Prob. 33PCh. 31 - Prob. 34PCh. 31 - Prob. 35PCh. 31 - Prob. 36PCh. 31 - Prob. 37PCh. 31 - Prob. 38PCh. 31 - Prob. 39PCh. 31 - Prob. 40PCh. 31 - Prob. 41PCh. 31 - Prob. 42PCh. 31 - Prob. 43PCh. 31 - Prob. 44PCh. 31 - Prob. 45PCh. 31 - Prob. 46PCh. 31 - Prob. 47PCh. 31 - Prob. 48PCh. 31 - Prob. 49PCh. 31 - Prob. 50PCh. 31 - Prob. 51PCh. 31 - Prob. 52P
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