The latent form of a bacteriophage genome that exists when a phage establishes lysogeny is called a ________.

A. lysogen
B. prophage
C. prion
D. viroid


Answer: B

Biology & Microbiology

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The proteins of the electron transport chain active in the light-dependent reactions _____

A) are membrane proteins present in the thylakoid B) are free proteins present in the thylakoid lumen C) are considered to be part of the reaction center of photosystem I D) absorb the same wavelengths of light as their associated chlorophylls

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Which of the following cell types are specifically part of the adaptive immune system? Select all correct choices

A. eosinophils B. plasma cells C. mast cells D. dendritic cells E. helper T cells

Biology & Microbiology

What type of selection would include the evolution of a long neck in giraffes?

A) stabilizing selection B) directional selection C) diversifying selection D) disruptive selection

Biology & Microbiology

Which best describes the effect of positive assortative mating in a population?

a. It causes natural selection. b. It increases homozygosity. c. It changes allele frequencies. d. It stabilizes genotype frequencies. e. It produces more mutations each generation

Biology & Microbiology