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stepladder [879]
4 years ago
14

20. How did HeLa cells make it possible to diagnose trisomies like Down syndrome?

Biology
1 answer:
Rasek [7]4 years ago
6 0

He La cells have play important role in the study of cancer and even in cancer therapies. He La cells are also used to diagnose trisomic disorders such as Down's Syndrome with the help of chromosome banding. Some genes present in the He La cells are used as markers and compared with the other cell line in question. Presence of the marker for Down's syndrome in the cell in question shows that the person is suffering from the disease.

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How will you determine which strain is wild type and which strain is mutant? Can you justify your answers using molecular biolog
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Explanation: A wildtype strain functions normally, for example, can metabolize as a carbon source, glucose, lactose and other sugars, can synthesize all the aminoacids requered for protein synthesis, etc. If a strain suffers a mutation and it is inheritable, the strain become a mutant. Since several mutations can be silent ones, only those that interfere with a process, can be assesed easyly.

For example, if you have several strains and put them in a lactose medium, but some of them cannot growth means that are lactose mutants. Those strains could carry a mutation in genes that encode lactose degrading enzymes or in regulatory genes of the lac operon, etc.

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3 years ago
Explain the effect salinity and temperature have on water density.
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What explains a child's growth over time?
garik1379 [7]

Answer:

New cells with identical DNA are created through cell division.

Explanation:

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<h3>What is climate change?</h3>

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Increased carbon in surroundings increases temperature and results in a change in seasons and humidity levels, leading to changes in the rainfall.

Therefore, climate change is the limitation of the carbon model.

Learn more about the carbon cycle here:

brainly.com/question/21984131

#SPJ1

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