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Anit [1.1K]
2 years ago
10

What direct effect do histamines have on capillaries?.

Biology
1 answer:
Digiron [165]2 years ago
6 0

Answer: They allow capillary walls to open and become leaky. They decrease the diameter of capillaries. They prevent phagocytes from sticking to the walls of capillaries. They allow capillary walls to open and become leaky.

Explanation:

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A eukaryotic gene contains 14 exons. Most of the transcripts from this gene contain all 14 exons, but some contain only 11 exons
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Answer:

D. Alternative splicing is the mechanism that produce complexity in the genes by splicing some of the protein coding part (exons) of a genes

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There are certain splicing enhancers sites present in Exons which facilitiates the binding of RNA binding protein specifically SR protein family rich in Serine and Arginine residues. This SR protein will help in splicing of exons.

The significance of this type of mechanism is the ability of a cell to produce an isoform of protein which have retain their function.

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Why do we have 4 chambered heart
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