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ki77a [65]
3 years ago
12

A scientist wants to perform a test that will indicate whether a nucleic acid sample is composed of RNA or DNA. Testing for the

presence of which of the following is most appropriate in this situation?
Biology
1 answer:
ehidna [41]3 years ago
5 0

The options are :

A) phosphate

B) nitrogen

C) guanine

D) uracil

E) thymine

Answer:

The correct answer is E) thymine

Explanation:

DNA and RNA are both made up of nucleotide. There are two major difference between DNA and RNA. In DNA deoxyribose sugar is present and in RNA ribose sugar is present.

The other difference is in DNA thymine nucleotide is present which makes complementary base pairing with adenine but in RNA thymine is replaced by uracil.

Therefore testing for the presence of thymine is most appropriate in this situation to find out whether a nucleic acid sample is composed of RNA or DNA.

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Approximately 71% of Earth is covered with salt water. This salt water comprises
statuscvo [17]

Answer:

one global ocean

Explanation:

7 0
3 years ago
A burn or injury to a tissue is caused by
Sav [38]

 A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.

Hope This Helps!       Have A Nice Day!!

4 0
4 years ago
Collin often experiences a "runner's high" during his daily three-mile run. this is most likely produced by _____.
Nesterboy [21]
<span>Collin often experiences a "runner's high" during his daily three-mile run. this is most likely produced by endorphins.
Endorphins are related to a group of hormones which are secreted within the brain and the nervous system, it is like morphine chemicals which are produced. It is mostly produced when you exercise a lot, run high or stress etc.</span>
7 0
4 years ago
What are two sources of organic waste that are produced by aquatic ecosystems?
Anna [14]
The two sources of organic wastes that are produces by aquatic system are Nitrogenous- Ammonia and the decaying remains.
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7 0
3 years ago
Science provides only a
melomori [17]

Science provides only a limited understanding of the supernatural, or other ways of knowing, such as art, philosophy, or religion is a true statement.

<h3>Why science provide limited information about supernatural?</h3>

Science provides only a limited understanding about supernatural, aesthetic, or other ways of knowing, such as art, philosophy, or religion because they are not proved by the science through experiments. These things are beyond from explaining them. Science can't explain the happening of supernatural phenomenon. Science does not create moral or ethical rules, laws, or judgements. Science deals with only things that can be observed or measured so that's why science is not understanding supernatural things.

So we can conclude that Science provides only a limited understanding of the supernatural, or other ways of knowing, such as art, philosophy, or religion is a true statement.

Learn more about science here: brainly.com/question/17216882

#SPJ1

3 0
2 years ago
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