The enzyme used by retroviruses to make a DNA copy of their RNA genome is called ________.
A. reverse transcriptase
B. RNA replicase
C. RNA polymerase
D. DNA polymerase
Answer: A
You might also like to view...
Which of the following morphologies are seen among the Chloroplastida?
A. Filamentous B. Colonial C. Sheet-like D. Unicellular E. All of the choices are correct.
Which of the following describes when mixtures of protein-coding regions from duplicated genes with different functions generate new genes with new functions?
A. concerted evolution B. neofunctionalization C. de novo genes D. Subfunctionalization E. exon shuffling
After estimating a logit model for the likelihood of a website visitor clicking through conditional on if the visit occurred on a weekday or not, you get the following results: ClickThroughi = -1.2(0.4) + 0.8(0.2)WeekDayi, where standard errors are reported in parenthesis. What would be the calculation that yields the marginal effect of a visit moving from a weekend to a weekday on click-throughs?
A. 0.8
B. 
- 
C. 
D. -1.2 + 0.8 = -0.4
All of the following are benefits of food irradiation, except
A. it can kill insects on the food. B. it can inhibit the sprouting of white potatoes. C. it can reduce the number of food-borne deaths each year. D. it can kill bacterial pathogens on the food. E. it makes the food less nutritious.