Question

1/ The diameter of the DNA helix in Watson and Crick model is___Å.
2/ Replication of DNA takes place from____3 direction.
3/ In an operon, RNA polymerase binds on____gene.
4/ Allergy is the_____ reaction of the immune system.
5/ Immunodiffusion is a____test.​

Answer 1

Answer:

1 diameter 34 A

2 continuous in direction of 3' to 5' direction and discontinuous in 5'to3' direction

3 operator gene

4 IgE