Which statement is true?
a. Retroviruses hijack existing reverse-transcription processes in cell to reproduce.
b. Retroviruses activate vestigial genes in host cells to facilitate viral reproduction.
c. Retrovirus genomes are encoded in RNA and must be converted to DNA in the cell.
d. Retroviruses only become symptomatic within the offspring of infected host organisms.
c. Retrovirus genomes are encoded in RNA and must be converted to DNA in the cell.
You might also like to view...
What simple sugar is produced ?
a. Glucose b. Fructose c. Galactose d. Sucrose e. Cellulose
During exhalation, the chest cavity ____ in size, which causes air pressure in the lungs to ____
a. increases; increase b. decreases; decrease c. increases; decrease d. decreases; increase e. expands; remain the same
Which of the following is (are) an example(s) of
prokaryotes? a. all protists b. some fungi c. all algae d. all bacteria e. all of these
The intra-alveolar pressure is determined by what two factors?
A) quantity of air in the alveolus and volume of the alveoli B) dead air space and atmospheric pressure C) elastic recoil and intrapulmonary pressure D) perfusion pressure and elastic recoil E) functional residual capacity and elastic recoil