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beks73 [17]
2 years ago
5

What is immunity??Enjoy 50 points​

Biology
2 answers:
slavikrds [6]2 years ago
7 0

Explanation:

it is the ability to avoid or not to be infected by any disease, criticism, punishment by law etc....

hope it helps

Firdavs [7]2 years ago
3 0

\huge{\mathbb{\tt { QUESTION↓}}}

What is Immunity ?

\huge{\mathbb{\tt { ANSWER↓}}}

  • In biology, immunity is the capability of multicellular organisms to resist harmful microorganisms. <u>Immunity involves both specific and nonspecific components</u>. The nonspecific components act as barriers or eliminators of a wide range of pathogens irrespective of their antigenic make-up

  • <u>Immunity refers to the body’s ability to prevent the invasion of pathogens.</u> Pathogens are foreign disease-causing substances, such as bacteria and viruses, and people are exposed to them every day. Antigens are attached to the surface of pathogens and stimulate an immune response in the body. An immune response is the body’s defense system to fight against antigens and protect the body.

#CarryOnLearning

#LetsEnjoyTheSummer

<h3>→XxKim02xX</h3>
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tresset_1 [31]

Answer/Explanation:

(1) a mutation in the coding region, resulting in an inactive protein

To check to see if there is a mutation, you could extract the DNA from the cancer cells and then perform PCR to amplify the gene of interest. You could then perform sanger sequencing and compare the sequence to the normal gene to see if a mutation is present. To test the effect of the mutation, you would want to see if an active protein has been formed.

To see if a normal sized protein has been formed, you could perform a western blot, comparing the protein band to the WT protein band. If the protein is absent or much smaller, it is likely not a functional protein.

(2) epigenetic silencing at the promoter of the gene, resulting in reduced transcription.

To check for changes in the epigenetic landscape of the promoter, you could perform chromatin immunoprecipitation by extracting the chromatin from the tumour cells and using antibodies for different chromatin marks to see what has changed between the normal cells and the tumor cells. E.g. H3K9me3, H3K27me3. You would perform a pull down with the antibody of interest and then PCR for your promoter to specifically look at changes at that gene compared to normal cells. To test DNA methylation, you could perform bisulfite sequencing.

To see how transcription is affected, you could extract RNA from the tumor and normal cells, and compare the levels of RNA between the two samples by qRT-PCR

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3 years ago
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Maurinko [17]
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Hope this helps

Explanation:

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