Answer:
Only the extracts from heat-killed cells treated with RNase are unable to transform nonvirulent bacteria into virulent bacteria.
Explanation:
The experiment by Avery, McCarty and MacLeod aimed to identify Griffith's "transforming principle," which is a principle that explains how transformation is a way of recombining, exchanging, or transferring genetic information between organisms or from one organism to another. For this, they used cell that were heat inactivated and purified the transforming principle of these cells.
The purified cells did not give positive results in the tests done by the scientists, but they presented transformants very similar to the DNA. However, Avery suspected that the result should be reinterpreted and that the molecule was not a DNA. This is because RNA degrading enzymes had no effect on the transforming principle and only RNase-treated heat-killed cell extracts are unable to transform non-virulent bacteria into virulent bacteria.
Answer:
Human lung capacity can be measure in several ways. One way is by using a piece of laboratory equipment called a respirometer or spirometer. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Procedure A: VITAL CAPACITY 1. Blow up the balloon several times to stretch it before beginning to take measurements.
Explanation:
Answer:
i see the pics but what do you mean
Explanation:
Flow rate needed to deliver the dose 250 ml bag of NS with 1g of Kefzol is 41.6gtt/min.
What is kefzol?
Cefazolin or kefzol is an antibiotic used to treat a wide variety of bacterial infections. It may also be used before and during certain surgeries to help prevent infection. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria.
Given data:
Volume = 250ml
time = 60 mins
drop factor = 10gtt/min
Volume (mL)/ Time (min)x Drop Factor = Y (Flow Rate)
250ml/60 mins×10gtt/min = Y
Y = 41.6 gtts/min
To learn more about kefzol: brainly.com/question/5086939
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Answer:
It is True
Explanation:
Athletes need more iron than the general population. Iron is lost through sweat, skin, urine, the gastrointestinal (GI) tract, and menstruation. Exercise, particularly high intensity and endurance types, increases iron losses by as much as 70% when compared to sedentary populations.
