A DNA strand has the sequence 5^prime-ATGCCA-3^prime. The complementary strand, written from its 5^prime end to its 3^prime end, is

JEE Main levelSingle correct optionDifficulty 2 of 3bm146

A DNA strand has the sequence $5^{'}$ -ATGCCA- $3^{'}$ . The complementary strand, written from its $5^{'}$ end to its $3^{'}$ end, is

Strands are antiparallel. Pairing A-T, T-A, G-C, C-G, C-G, A-T gives

3^{'}

-TACGGT-

5^{'}

. Reversed to read

5^{'}

3^{'}

, this is TGGCAT.