Comparing DNA Replication and Transcription
DNA replication is the process by which a cell copies its DNA.
slication, both strands of the double helix are used as
es to make complementary, or matching, strands of DNA.
DNA transcription is the process by which a single strand of DNA
is used as a template to generate a strand of mRNA.
Fill in the missing information. One row has been completed for you.
Template DNA
Complementary DNA Messenger RNA
(mRNA)
TTACG
AATGC
AAUGC
GGCGG
ACGUAGC
AGACTC
13
GATAAGA
16
17
CUGGCUAC

The missing information has been completed as:

DNA Tempelate        complementary DNA    mRNA

3' TTACG 5'                5' AATGC 3'                 5'UUACG 3'

3' AAUGC 5'                  5' TTACG 3'            5'UUACG 3'

3' GGCGG 5'                  5' CCGCC3'          5' CCGCC3'

' 3'TGCATCG5'               5' ACGTAGC 3'     5' ACGUAGC 3'

3' AGACTC 5'                 5' TCTGAG  3'       5' AGACTC 3'

3'GATAAGA 5'               5' CTATTCT 5'         5' CTAUUCA 3'

3' CTGGCTAC5'           5' GACCGATG 3'    3'CUGGCUAC 5'

Explanation:

Some of the sequence of DNA given is in 3' to 5' direction, mRNA sequence is also given.

The DNA is double stranded helix which replicates by semi conservative mode. The two strands unwind to act as a template for other strands. In transcription the 3' to 5' strand acts as a template because RNA synthesis takes place in 5' to 3' direction. mRNA is single strand. It has nucleotides in it from which 3 base pairs acts as a code for amino acid.

The following table shows DNA strand having complementary sequaence and mRNA synthesized.

 DNA Tempelate        complementary DNA    mRNA

3' TTACG 5'                5' AATGC 3'                 5'UUACG 3'

3' AAUGC 5'                  5' TTACG 3'            5'UUACG 3'

3' GGCGG 5'                  5' CCGCC3'          5' CCGCC3'

' 3'TGCATCG5'               5' ACGTAGC 3'     5' ACGUAGC 3'

3' AGACTC 5'                 5' TCTGAG  3'       5' AGACTC 3'

3'GATAAGA 5'               5' CTATTCT 5'         5' CTAUUCA 3'

3' CTGGCTAC5'           5' GACCGATG 3'    3'CUGGCUAC 5'

{r]{y}     {r]{y}

{y}{r .     {r}{y}

explanation:

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explanation: