Question

Using the genetic code complete the table below:


Using the genetic code complete the table below: 

image.png

Complete the following table: 

image.png

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Answer #1

Answer –

DNA non-coding strand

ATG-GTT-CTA

ACG-GAA-CGA

TGT-TGG-TGA

GGG-GGA-GGT

DNA coding strand

TAC-CAA-GAT

TGC-CTT-GCT

ACA-ACC-ACT

CCC-CCT-CCA

mRNA-sequence

UAC-CAA-GAU

UGC-CUU-GCU

ACA-ACC-ACU

CCC-CCU-CCA

Amino acid sequence

Tyr- Gln- Asp

Cys-Leu-Ala

Thr- Thr- Thr

Pro- Pro- Pro

Explanation -

Coding DNA strand also known as sense strand is the DNA strand which corresponds to mRNA sequence while non-coding strand also known as template strand is the DNA strand that undergoes transcription generating mRNA. The only difference between mRNA and coding strand sequence is presence of thymine instead of uracil in coding DNA strand compare to mRNA while mRNA sequence is complementary to non-coding DNA strand.

Thu with non-coding template strand DNA sequence

ATG-GTT-CTA- ACG-GAA-CGA- TGT-TGG-TGA- GGG-GGA-GGT

mRNA with the following sequence can be generated

UAC-CAA-GAU-UGC-CUU-GCU-ACA-ACC-ACU-CCC-CCU-CCA

Thus, the coding strand DNA sequence that could be complementary to non-coding strand but correspond to mRNA with instead of U, there would be T is

TAC-CAA-GAT-TGC-CTT-GCT-ACA-ACC-ACT-CCC-CCT-CCA

And lastly from mRNA sequence following amino-acid sequence generated

UAC-CAA-GAU-UGC-CUU-GCU-ACA-ACC-ACU-CCC-CCU-CCA

Tyr- Gln- Asp- Cys- Leu- Ala- Thr-Thr- Thr- Pro -Pro -Pro

Hence, the table is

DNA non-coding strand

ATG-GTT-CTA

ACG-GAA-CGA

TGT-TGG-TGA

GGG-GGA-GGT

DNA coding strand

TAC-CAA-GAT

TGC-CTT-GCT

ACA-ACC-ACT

CCC-CCT-CCA

mRNA-sequence

UAC-CAA-GAU

UGC-CUU-GCU

ACA-ACC-ACU

CCC-CCU-CCA

Amino acid sequence

Tyr- Gln- Asp

Cys-Leu-Ala

Thr- Thr- Thr

Pro- Pro- Pro

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