According to the progressive hypothesis, viruses may have originated as mobile genetic
elements such as:
a. mRNA.
b. alleles.
c. plasmids.
d. enzymes.
e. ribosomes.
c
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A strategy to induce random indels in a target sequence might use ________
A) NHEJ to ligate fragments B) HDR and a donor template C) NHEJ and Cas9 D) HDR to match damaged and undamaged chromosomes
During which stage of development do cells arrange themselves into three layers?
A) organogenesis B) morula C) cleavage D) gastrulation
Transport epithelia are responsible for __________.
a. pumping water across a membrane b. forming an impermeable boundary at an interface with the environment c. the movement of solutes in osmoregulation or excretion d. transporting urine in the ureter and urethra e. the passive transport of H+ and HCO3- for the regulation of pH
Which infection are you likely looking at if you view a direct smear of a cervical scraping and see enlarged (multinucleate giant) cells and intranuclear inclusions?
A. HSV-2 B. HPV C. EBV D. VZV E. HCV