Which of the following bases is not present in dna?
a. thymine
c. guanine
b. cytosine
d. uracil user: scientific research is being used to determine different processes that can be used in the treatment of genetic diseases. one method that is currently under study by medical researchers is the use of gene therapy to treat genetic defects. which of the following is an example of a disease that might be treated using gene therapy?
a. cystic

Sydney drew a flow chart to illustrate the nitrogen cycle. which labels best complete the flow chart? x: producers undergo photosynthesis. y: nitrogen compounds are released into the air. x: nitrogen compounds are released into the air. y: producers undergo photosynthesis. x: free nitrogen is in the atmosphere. y: producers absorb nitrogen compounds through their roots. x: producers absorb nitrogen compounds through their roots. y: free nitrogen is in the atmosphere.

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not