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loris [4]
3 years ago
9

What is the effect of expressing a dominant active form of the small GTPase Rac1 in a human neutrophil

Biology
1 answer:
yan [13]3 years ago
8 0

Answer:

The neutrophil forms multiple lamellipodia extensions

Explanation:

Neutrophils are white blood cells (granulocytes) which comprise the first line of defense in the innate immune system. The lamellipodium (in plural, lamellipodia) is a cytoskeletal actin extension found in mobile cells, whose main functions are cell motility and migration.  Rac1 is a member of the Rho GTPase protein family which is involved in actin-myosin cytoskeletal reorganization of neutrophil cells in response to microorganism infections. In this regard, it has been shown that Rac1 controls the initial uncapping of actin ends in order to regulate cytoskeleton dynamics, thus regulating lamellipodia formation. By using mice as models, researchers observed that Rac1 constitutive activation may lead to the formation of multiple lamellipodia in neutrophils.

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pogonyaev

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3 years ago
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IRINA_888 [86]
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The next section of information on a nutrition label is about the amounts of specific nutrients in the product.

3 - Limit certain nutrients.

Check key nutrients and understand what you’re looking for. Not all fats are bad , and total sugars can include both natural and added sugars. Limit the amounts of added sugars , saturated fat and sodium you eat, and avoid trans fat. When choosing among different brands or similar products, compare labels and choose foods with less of these nutrients when possible..

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*Source: 2015-2020 Dietary Guidelines for Americans
6 0
3 years ago
What is an ocean basin?? I'm not exactly sure...
jek_recluse [69]
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