Quzilet Which of the following occurs when DNA is replicated? Group of answer choices One strand of the parent DNA is preserved; the other is destroyed. The two strands of the parent DNA are separated and then recombined before being passed on to the daughter cell. The two strands of the parent DNA are separated, and two daughter DNA strands are formed. Each of the two strands of parent DNA is reordered through the process of linkage, adding significant variation to the daughter cells.

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody