What is the complementary sequence for sequences 1. and 2. shown below.NOTE: Please remember DNA has polarity-the sequence needs to be written in 5' (read five prime) to 3'(read three prime) direction. For example:
The complement of 5'-AGCT-3' is not TCGA, because as written this means 5'-TCGA-3', but 3'-TCGA-5'. Convention has it that we write the complementary sequence from 5' to 3', so you reverse 3'-TCGA-5' to 5'-AGCT-3', which is the correct answer.
- 5'-AATTAA-3'
- 5'-GGCCGGCC-3'
- 3'-ATAT-3'
- 3'-TTAACC-5'