Reports of reactions to food additives have included the following: 1  Skin urticaria/angioedema. atopic dermatitis. 2  Gastrointestinal abdominal pain. nausea/vomiting. 3  Respiratory asthma symptoms. cough.  Musculoskeletal muscle aches. joint 1  aches. Neurologic behavior and mood changes. attention deficit and hyperactivity disorder.  Cardiac palpitations.
DNA replicates by the semiconservative model of replication. This model states that during replication of double stranded DNA, the two strands separate and each separate strand is then used as a template to make a new strand.
DNA Replication. INTRODUCTION. DNA replication is the process whereby an entire double-stranded DNA is copied to produce a second, identical DNA double helix. To understand the functions of the proteins responsible for DNA replication, including helicase, SSB protein, primase, the sliding clamp, DNA polymerase, Rnase H and DNA ligase. to understand why the leading strand is synthesized continuously and the lagging strand is synthesized discontinuously.