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antiseptic1488 [7]
3 years ago
12

To test for protein, you added Biuret solution and

Biology
2 answers:
BartSMP [9]3 years ago
8 0

Answer:

The water should not be pink/purple because water should test negative for protein.

The water should actually have turned blue, because Biuret solution is blue.

Someone may have mislabeled the test tube with water.

The water may have been contaminated with a protein.

Explanation:

OLEGan [10]3 years ago
7 0

Answer:

Water sample showing pink/purple color is an error.

Explanation:

Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.

Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.

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Species are the organism that can mate with each other to produce a fertile offspring.

Explanation:

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Explanation:

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Assume that a deletion mutation occurs within the trp operon so that the DNA corresponding to the last (distal) part of region 1
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Hopefully this helps! If it doesn't, let evil.

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Answer:

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Answer:

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