The answer is the second and third answers. Kingdom Protista is a polyphyletic taxon, meaning they did not evolve from one common ancestor, unlike what you see from a monophyletic taxon. Because they come from multiple ancestors, they share more similarities with other organisms from other kingdoms, rather than themselves.
Answer:
Its creates air pullution, Burning of fossil fuels produces oxides of carbon, nitrogen, sulphur, etc. that cause acid rain, which affects the soil fertility and water.
Explanation:
Cells, like bacteria and archaea, that do not have a nucleus in their cells have traditionally been called prokaryotes.
<h3>What are prokaryotic cells?</h3>
Prokaryotes are organisms whose cell (or cells) are characterized by the absence of a nucleus or any other membrane-bound organelles.
Prokaryotic cells are opposed to their eukaryotic counterparts that possess a membrane-bound nucleus that houses their genetic material (DNA).
Examples of prokaryotes are as follows:
Therefore, cells, like bacteria and archaea, that do not have a nucleus in their cells have traditionally been called prokaryotes.
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Explanation:
The enzymatic digestion of starch by amylase can be performed in the laboratory by several ways. But below there is an example of it
In order to have the best protein performance we have to set the temperature of the reaction to 37 celsius degrees.
- Prepare a starch solution and spread into tubes
- Prepare an amylase solution and spread into tubes
- Adjust the pH to the optimum range with buffers, that is about 6.7 to 7.
- Adjust the temperature of the tubes reaction to 37 celsius degrees.
The wrong temperature and the pH can unfold the enzymes and make the binding site inefficient.
- Pipette the starch solution in the tubes with enzymes.
By the final step the glucose will be produced by the enzymatic digestion of amylase.
It's attached the scheme of the hydrolyzation of a starch strain
SDS-PAGE electrophoresis is used to verify the purity of a protein product. Some of the limitations of this method are:
<span><span>· </span>identification of a band on a protein gel is not always reliable because different polypeptides can have very similar molecular masses,</span>
<span><span>· </span>band on a protein gel may mask the presence of more than one polypeptide,</span> <span><span>· </span><span>presence of non-protein residues can affect the mobility of polypeptide and thus cause an error.</span></span>
