Which of the following risk factors has the most immediate impact on a person's health?
eating too much junk food
not exercising for at least 30 minutes a day
not wearing a seat belt while driving
smoking cigarettes

Which of the following statements describes the lysogenic cycle of lambda (λ) phage? a) after infection, the viral genes immediately turn the host cell into a lambda-producing factory, and the host cell then lyses.b) most of the prophage genes are activated by the product of a particular prophage gene.c) the phage genome replicates along with the host genome.d) the phage dna is copied and exits the cell as a phage.