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Rainbow [258]
4 years ago
10

What results would you expect from a biuret test of steak solution?

Biology
1 answer:
creativ13 [48]4 years ago
7 0

Answer:

A positive result.

Explanation:

Biuret test is a test performed to check whether proteins are present in a given sample or not. If the solution changes its colour to violet then it means that the sample contains proteins. If the colour is not changed to violet, then the result would be negative and protein would not be present in the sample.

Steaks contain a rich amount of protein. Hence, when Biuret test is performed for a steak solution, the results will be positive. The steak sample would change colour to violet.

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fgiga [73]

Answer:

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Explanation:

A Mutation alters the genetic message carried by that gene as there are permanent changes in the nucleotide sequence of DNA or a DNA gene.

This can occur by base pairs substitution, deletion or insertion

5 0
3 years ago
How can mutations be helpful? Give 2 examples
RSB [31]
Having two copies of the mutated genes cause sickle cell anemia, but having just one copy does not, and can actually protect against malaria - an example of how mutations are sometimes beneficial. 

The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.

Hope this helped :)
6 0
4 years ago
How is nitrogen from the atmosphere the abiotic part of the ecosystem converted in to the biotic part of the ecosystem in organi
AveGali [126]

Solution:

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By which free nitrogen (N2) is extracted from the atmosphere and converted (fixed) into nitrogen compounds which are plant nutrients (fertilizer). In nature, this process is carried out by certain bacteria (present in the root nodules of legumes such as beans and peas), blue-green algae, and the lightning flash.

Thus the Nitrogen form the atmosphere the biotic part to the ecosystem converted into the biotic part.

7 0
3 years ago
What is a gene?
Dafna1 [17]

Answer:

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Explanation:

4 0
4 years ago
Why does burning fossil fuels cause the Carbon cycle to be out of balance?
Shalnov [3]

Answer:

Burning fossil fuels spits out carbon dioxide into the air faster than photosynthesis and other processes can scrub it back out.

Explanation:

5 0
3 years ago
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