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Oksana_A [137]
4 years ago
13

Antigen processing and presentation Antigen processing and presentation is a way for a cell to give information about its activi

ties. is the way foreign cells engulf macrophages. is a way for viruses to infect cells. is only accomplished by bacterial cells.__________
Biology
1 answer:
Blizzard [7]4 years ago
7 0

Answer:

is a way for a cell to give information about its activities.

Explanation:

Antigen-presenting cells (APC) such as dendritic cells, macrophages, and B cells are present where antigens are most likely to penetrate the body. Ingestion of antigens by these cells is followed by digestion of antigen into peptide fragments and their association with MHC molecules.

The antigen-MHC complex is then inserted into the plasma membrane of APCs. The antigens present on the surface of APCs are recognized by the T cells to trigger the adaptive immune response. Antigen processing and antigen presentation by antigen-presenting cells are required to inform the T cells of the immune system about the presence of antigen in the body and immune responses of APCs.

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lys-0071 [83]

Answer: Option 1, 2,3, 4, 5 are all correct.

Explanation:

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7 0
3 years ago
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V125BC [204]
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3 years ago
A segment of DNA shows bases in this order AGT CAC GCA, complete the corresponding DNA strand: TCA GTG?
GrogVix [38]

The answer is B: CGT


According to the base pairing rules, in DNA, adenine pairs with thymine (A-T), and cytosine pairs with guanine (C-G).

The complementary triplet for GCA is CGT. So, for the DNA segment AGT CAC GCA, the complementary strand will be TCA GTG CGT:

Known strand:                  <span>AGT CAC GCA</span>

<span>Corresponding strand:      TCA GTG CGT</span>

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3 years ago
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What is shown in Figure 11–4? Group of answer choices
ololo11 [35]

Answer:

crossing-over

Explanation:

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