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Gnom [1K]
3 years ago
8

In the experiments conducted by Avery, McCarty, and MacLeod, which hypothetical result would indicate that protein, not nucleic

acid, was Griffith's transforming substance? Only the extracts from heat-killed cells treated with RNase are unable to transform nonvirulent bacteria into virulent bacteria. All of the extracts from heat-killed cells are able to transform nonvirulent bacteria. Only the extracts from heat-killed cells treated with D
Medicine
2 answers:
Jobisdone [24]3 years ago
4 0

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.

Vikentia [17]3 years ago
3 0

Answer:

Only the extracts from heat-killed cells treated with RNase are unable to transform nonvirulent bacteria into virulent bacteria.

Explanation:

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The healthcare industry

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Which of the following is an acceptable example of additional documentation?
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A

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Given the vast amount of breakdown of his tooth enamel and the black discoloration, what do you suspect may be the primary cause
Evgen [1.6K]

The vast amount of breakdown of his tooth enamel and the black discoloration, I suspect tartar and tooth decay may be the primary cause of this deterioration

<h3>Tartar</h3>

A dentist will have to remove the build-up when tartar is the cause, typically by scraping the tartar off the teeth. The dentist may have to use ultrasonic instruments that use vibration to break up the tartar and make it easier to remove.

<h3>Tooth decay</h3>

In cases of decay, it's unlikely that a dentist will be able to improve the black teeth through a simple cleaning. they're going to instead need to remove the decayed portion of the tooth.

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3 0
2 years ago
Wanda's dog eat 35 pounds of dog food each week. At this rate, how many pounds of dog food they eat in 12 days
In-s [12.5K]

Answer:

60 pounds of dog food

Explanation:

first, find out how much the dog eats per day by dividing 35 pounds by 7 days.

35/7=5 pounds per day

next, find out how much the dog eats in 12 days by multiplying 5 pounds by 12 days.

5*12=60 pounds of dog food.

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a nursing mother needs at least how many kilocalories a day to receive all the nutrients required for successful lactation? quiz
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A nursing mother needs at least 330 to 400  kilocalories a day to receive all the nutrients required for successful lactation.

<h3>What is lactation?</h3>

Lactation is defined as a process in which mother feeds her own milk to her baby as the milk of mother contain all essential requirements that is beneficial for the growth of the baby. Atleast 330 to 400 kilocalories a day to receive all the nutrients required for successful lactation.

During the first trimester there is no need of extra calorie, during second trimester extra calorie is required and total amount is 340 calories per day suggested by doctor. In case of third trimester the requirement of calorie increases and 450 calories is required in a single day.

Therefore, a nursing mother needs at least 330 to 400  kilocalories a day to receive all the nutrients required for successful lactation.

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5 0
2 years ago
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