Question

apply it!
match each dna template strand to its complementary mrna sequence.
drag and drop the sequences to correctly complete the table.
dna template strand mrna strand
tac ggt agc taa
gca ugc cgu aag
atg ccg tta gca
cgt acg gca ttc uac ggc aau cgu aug cca ucg auu

Explanation:

Step1: Understand base - pairing rules

In transcription, DNA (A - T, G - C) pairs with mRNA (U - A, C - G).

Step2: Transcribe the first DNA strand

For DNA strand TAC GGT AGC TAA:

• T pairs with A, A pairs with U, C pairs with G, G pairs with C, T pairs with A, A pairs with U, G pairs with C, C pairs with G, T pairs with A, A pairs with U.
• The mRNA sequence is AUG CCA UCG AUU.

Step3: Find the DNA strand for the given mRNA

For mRNA GCA UGC CGU AAG:

• G pairs with C, C pairs with G, A pairs with T, U pairs with A, G pairs with C, C pairs with G, U pairs with A, C pairs with G, G pairs with C, U pairs with A, A pairs with T, A pairs with T, G pairs with C.
• The DNA strand is CGT ACG GCA TTC.

Step4: Transcribe the third DNA strand

For DNA strand ATG CCG TTA GCA:

• A pairs with U, T pairs with A, G pairs with C, C pairs with G, C pairs with G, G pairs with C, T pairs with A, T pairs with A, A pairs with U, G pairs with C, C pairs with G, A pairs with U.
• The mRNA sequence is UAC GGC AAU CGU.

Answer:

DNA Template Strand	mRNA Strand
CGT ACG GCA TTC	GCA UGC CGU AAG
ATG CCG TTA GCA	UAC GGC AAU CGU