Simplify the following text for a Grade 8 native English-speaking person.
Original: Although DNA is arranged as two antiparallel strands in a double helix , only one of the two DNA strands , called the template strand , is used for transcription . This is because RNA is only single-stranded , as opposed to double-stranded DNA .
Simplified: As in DNA replication , only one of the two DNA strands is transcribed .