Question

1. Which of the following statements is NOT true?

   1. RNA molecules have an antiparallel orientation to the DNA strands to which they are complementary

   2. During RNA synthesis, the DNA template strand is read in a 3’ to 5’ direction

   3. Both DNA and RNA are synthesized in a 5’ to 3’ direction

   4. During RNA synthesis the direction of synthesis and the location of the transcriptional start site are determined by the position of the promoter.

   5. During RNA synthesis, new nucleotides are initially added to the 3’ end of a primer.

Answer 1

According to the statements given.

1) The DNA and RNA  are complementary but not anti-parellel, HERE antiparellel means opposite in direction they both have direction of 5' to 3'

Hence the statement
RNA molecules have an antiparallel orientation to the DNA strands to which they are complementary is FALSE

5) RNA polymerase synthesizes an RNA strand complementary to a template DNA strand.
It synthesizes the RNA strand in the 5' to 3' direction,

Hence the statement
During RNA synthesis, new nucleotides are initially added to the 3’ end of a primer is FALSE

Therfore the statements ( 1 & 5 ) are FALSE