Pregnancy tests are examples of sandwich ELISAs.

Here's why:

1. ELISA stands for Enzyme-Linked Immunosorbent Assay. It's a test that measures the immune response in the body. There are three types of ELISAs: direct, indirect, and sandwich.

2. In a pregnancy test, the aim is to detect a specific hormone called human chorionic gonadotropin (hCG), which is present in the body during pregnancy.

3. A sandwich ELISA is used because it involves capturing the target antigen (in this case, hCG) between two layers of antibodies. The first antibody is fixed to the surface of the test and captures the antigen. The second antibody, which is added later, binds to another part of the antigen, effectively 'sandwiching' the antigen between the two antibodies.

4. If the antigen is present (meaning the person is pregnant), it will be captured by the antibodies and a color change will occur, indicating a positive result.

So, pregnancy tests are examples of sandwich ELISAs because they use this method to detect the presence of hCG.

Question

Pregnancy tests are examples of sandwich ELISAs.

Here's why:

1. ELISA stands for Enzyme-Linked Immunosorbent Assay. It's a test that measures the immune response in the body. There are three types of ELISAs: direct, indirect, and sandwich.

2. In a pregnancy test, the aim is to detect a specific hormone called human chorionic gonadotropin (hCG), which is present in the body during pregnancy.

3. A sandwich ELISA is used because it involves capturing the target antigen (in this case, hCG) between two layers of antibodies. The first antibody is fixed to the surface of the test and captures the antigen. The second antibody, which is added later, binds to another part of the antigen, effectively 'sandwiching' the antigen between the two antibodies.

4. If the antigen is present (meaning the person is pregnant), it will be captured by the antibodies and a color change will occur, indicating a positive result.

So, pregnancy tests are examples of sandwich ELISAs because they use this method to detect the presence of hCG.

Knowee AI · Accepted Answer

Pregnancy tests are examples of sandwich ELISAs.

Here's why:

1. ELISA stands for Enzyme-Linked Immunosorbent Assay. It's a test that measures the immune response in the body. There are three types of ELISAs: direct, indirect, and sandwich.

2. In a pregnancy test, the aim is to detect a specific hormone called human chorionic gonadotropin (hCG), which is present in the body during pregnancy.

3. A sandwich ELISA is used because it involves capturing the target antigen (in this case, hCG) between two layers of antibodies. The first antibody is fixed to the surface of the test and captures the antigen. The second antibody, which is added later, binds to another part of the antigen, effectively 'sandwiching' the antigen between the two antibodies.

4. If the antigen is present (meaning the person is pregnant), it will be captured by the antibodies and a color change will occur, indicating a positive result.

So, pregnancy tests are examples of sandwich ELISAs because they use this method to detect the presence of hCG.

Pregnancy tests are examples of __________.ANSWERindirect ELISAsdirect ELISAssandwich ELISAsa mix of all three types of tests

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Pregnancy tests are examples of __________.

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