Which statement is false concerning carbohydrate fermentation media?
A. Positive carb fermentation is indicated by acid production
B. Gas production occurs when a bubble forms in the inner tube
C. Negative carb fermentation is indicated by acid production
D. They can distinguish both carb fermentation and gas production
Ans: C. Negative carb fermentation is indicated by acid production
You might also like to view...
What nucleoside trisphosphate, other than ATP, provides some of the energy for protein synthesis?
A. CTP B. GTP C. TTP D. UTP
You look outside and realize that your grass needs to be mowed. You pick up the container of gasoline and see that you have approximately a third of a gallon left. You hypothesize that this amount will be enough to mow your entire lawn. Unfortunately, half way through mowing your lawn you run out of gasoline. You grumble and think to yourself that the next time you mow the lawn, you hypothesize
that you will need to have at least two-thirds of a gallon of gasoline available. How did the results of your lawn-mowing experience influence the validity of your new hypothesis for future gasoline needs? A. Your prediction proved that your hypothesis is correct. B. Your hypothesis was supported by trial and error. One more trial added to your data set. C. The hypothesis was invalidated by your experimental evidence. D. Your prediction of future gas needs is based on experimental data and therefore increases the validity of your hypothesis.
The simple microscopes used by the earliest practitioners of microscopy contained which of the following?
A. Magnifying lens B. Oil-immersion lens C. Condenser D. Lamp E. Ocular
Map units on a linkage map cannot be relied upon to calculate physical distances on a chromosome because
A) the frequency of crossing over varies along the length of the chromosome. B) the relationship between recombination frequency and map units is different in every individual. C) physical distances between genes change during the course of the cell cycle. D) the gene order on the chromosomes is slightly different in every individual. E) all of the above