Biology, 15.09.2021 14:00 jerry7792

A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'-CCG-ACG-3' (mRNA). The charged transfer RNA molecules shown in the figure below (with their anticodons shown in the 3' to 5' direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form: tRNA AnticodonAmino Acid
GGC
Proline
CGU
Alanine
UGC
Threonine
CCG
Glycine
ACG
Cysteine
CGG
Alanine

Which of the following dipeptides will be formed?
Proline-Threonine
Glycine-Cysteine
Alanine-Alanine
Cysteine-Alanine
Question 2(Multiple Choice Worth 4 points)
(03.03 MC)

If a tRNA molecule has an anticodon which reads AUGACA, what was the codon of the mRNA molecule?

CGUCAC
TACTGT
TAGTGT
UACUGU
Question 3(Multiple Choice Worth 4 points)
(03.03 LC)

A triplet of bases in a template strand of DNA is CAG. What would be the corresponding codon for mRNA?

GTC
GUC
GTU
GUU
Question 4(Multiple Choice Worth 4 points)
(03.03 MC)

Use the following table to answer the question:

Codons Found in Messenger RNA
Second Base
First BaseUCAGThird Base
UPhe
Phe
Leu
LeuSer
Ser
Ser
SerTyr
Tyr
Stop
StopCys
Cys
Stop
TrpU
C
A
G
CLeu
Leu
Leu
LeuPro
Pro
Pro
ProHis
His
Gln
GlnArg
Arg
Arg
ArgU
C
A
G
AIle
Ile
Ile
MetThr
Thr
Thr
ThrAsn
Asn
Lys
LysSer
Ser
Arg
ArgU
C
A
G
GVal
Val
Val
ValAla
Ala
Ala
AlaAsp
Asp
Glu
GluGly
Gly
Gly
GlyU
C
A
G

This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-His-Thr?
GUA-CAU-ACC
GTA-CAT-ACC
CAT-GTA-TGG
CAU-GUA-UGG
Question 5(Multiple Choice Worth 4 points)
(03.03 LC)

Which type of RNA functions to use coded instructions to assemble amino acids?

mRNA
rRNA
tRNA
Ribosomes
Question 6(Multiple Choice Worth 4 points)
(03.03 MC)

How is genetic information of eukaryotic cells transferred from the nucleus to the cytoplasm of the cell?

RNA
Proteins
Lipids
DNA
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A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'-CCG-ACG-3' (m...

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