Which of the following methods has the highest genomic target site versatility? i.e. it allows for the most flexible targeting of DNA sequence.

True or false: mRNA injection causes permanently sustained expression in cells where it is administered; the mRNA and protein products will remain there indefinitely, and thus have direct effects on cellular processes for the entire life of the organism. 

CRISPR/Cas9 is sometimes used to “knock-in” donor DNA to a desired locus. Select all methods that are used to increase the frequency of these events. 

Anaerobic metabolism can produce ATP at a rapid pace, but only uses ________ as its fuel source.

Aerobic metabolism take place without the presence of oxygen.

Which element of physical fitness involves activities that increase your heart rate and breathing?

The fat-burning zone is a high-intensity aerobic activity that keeps the heart rate between about 70 and 85 percent of maximum heart rate.

During low-intensity activities, aerobic metabolism is used to supply enough ATP to muscles.

The high-energy molecule known as creatine phosphate converts ADP (adenosine diphosphate) to ATP.  This is important right after initial stores of ATP are used up.  

Proteins are considered a major energy source.