Question

which dna strand is needed for transcription in this viral replication process? a + strand b - strand

Explanation:

In transcription, the DNA - dependent RNA polymerase uses the template strand to synthesize RNA. In the context of viral replication shown, the (-) DNA strand serves as the template for transcription to produce (+) RNA (viral mRNA). This is because the RNA polymerase reads the DNA template in the 3' - 5' direction and synthesizes RNA in the 5' - 3' direction.

Answer:

B. - strand