Reverse transcriptase is used to make cDNA from an RNA template.
Answer the following statement true (T) or false (F)
True
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A typical human yawn lasts for about six seconds and once initiated, is nearly impossible to stop. Although there are many hypotheses for why we yawn, it is accepted that yawning is contagious - when we see someone else yawn, we often find ourselves yawning as well. This happens across all cultures and even in infants! In this case, the yawn an individual observes is ____________, while their own yawn is ____________.
A. an association, a conditioned response B. a sign stimulus, a fixed action pattern C. innate behavior, habituation D. reflex response, learned behavior
What radiolabeled substance did Hershey and Chase use to label the protein component of the bacteriophage in their study to determine whether protein or DNA was necessary for phage production?
A) nitrogen B) carbon C) sulfur D) phosphorus E) iodine
During muscle contractions,
a. the sarcomeres shorten. b. the actin filaments slide over the myosin filaments. c. the actin filaments move toward the middle of the sarcomere during contraction and away on relaxation. d. the muscle fibers thicken. e. all of these occur
Answer the following questions true (T) or false (F)
1. Mycoplasmas are named for the large quantities of mycolic acid in their cell walls. 2. Most of the methane produced by methanogens is oxidized by other types of bacteria before it affects Earth's climate. 3. Bacteria in the genus Cytophaga are capable of digesting a wide range of complex carbohydrates and are important for degrading raw sewage.