Many exoenzymes from pathogens are virulence factors.
Answer the following statement true (T) or false (F)
True
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What is the modern term for what Darwin called "descent with modification"?
Researchers can cut DNA at specific base sequences using ________
a. DNA ligase b. restriction endonucleases c. cloning vectors d. probes
Which of the following pairs of traits are homologous?
a. butterfly wings and bat wings b. the surface areas of bird and bat wings c. the bones of bird and bat wings d. butterfly wings and bird wings e. bird wings and bat wings
During bacterial conjugation, bacterial DNA with different alleles get together. What is the name of the long tubular structure that bacteria use to obtain differing alleles?
a. the sex pilus b. the metabolic pilus c. the flagellum d. the asexual pilus