Answer to Question #24470 in Microbiology for Kenya Roy

Question

Identify the template strand of DNA when the sequences of DNA and mRNA are given. Please give examples.

Answer 1

If DNA sequence is 5' AATGCATCGCCCT 3' then when underlined strain is read
3' TTACGTAGCGGGA 5'
mRNA will be AAUGCAUCGCCCU, where uracil is instead of thymine according to the complementary pairing.

If we have m RNA sequence: 5'AUGCGCUAAUCGC 3', then due to the same rule of the complementary pairing we can predict the former DNA sequence: 5'TACGCGATTAGCG 3', where thymine is present instead of uracile.
3'ATGCGCTAATCGC 5'