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.
Based on the diagnostic tests for acromegaly, high levels of growth hormone after intake of a sugary liquid indicates acromegaly.
<h3>What is acromegaly?</h3>
Acromegaly is a hormonal disorder which occurs when the pituitary glands produces excess growth hormones resulting in extra large faces hand and feet in the individuals affected.
Acromegaly can be diagnosed by:
- IGF test- high IGF-I level can indicate acromegaly.
- Oral glucose tolerance test - high levels of growth hormone after intake of a sugary liquid indicates acromegaly
Learn more about acromegaly at: brainly.com/question/4940609
