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grigory [225]
2 years ago
9

What is the function of the protein keratin

Biology
1 answer:
MissTica2 years ago
5 0

Answer:

Keratin serves important structural and protective functions, particularly in the epithelium. Some keratins have also been found to regulate key cellular activities, such as cell growth and protein synthesis

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for this question, unless they are clearly affected with the disease (like individual ii-5), assume that the disease allele is r
OleMash [197]

Based on the given condition of the question the disease is sickle cell anemia.

Sickle cell anemia is one of a group of inherited disorders known as sickle cell disease. It affects the shape of red blood cells, which carry oxygen to all parts of the body.

    Red blood cells are usually round and flexible, so they move easily through blood vessels. In sickle cell anemia, some red blood cells are shaped like sickles or crescent moons. These sickle cells also become rigid and sticky, which can slow or block blood flow.

     Sickle cells break apart easily and die. Red blood cells usually live for about 120 days before they need to be replaced. But sickle cells typically die in 10 to 20 days, leaving a shortage of red blood cells (anemia). Without enough red blood cells, the body can't get enough oxygen, and this causes fatigue.

   Periodic episodes of extreme pain, called pain crises, are a major symptom of sickle cell anemia. Pain develops when sickle-shaped red blood cells block blood flow through tiny blood vessels to your chest, abdomen and joints. The pain varies in intensity and can last for a few hours to a few days. Some people have only a few pain crises a year. Others have a dozen or more a year. A severe pain crisis requires a hospital stay.

  Some adolescents and adults with sickle cell anemia also have chronic pain, which can result from bone and joint damage, ulcers, and other causes. Swelling of hands and feet. The swelling is caused by sickle-shaped red blood cells blocking blood circulation in the hands and feet.

Learn more about sickle cell anemia at,

brainly.com/question/21354134

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6 0
1 year ago
Give three reasons how ionic and covalent bonds are different
andrezito [222]

Answer:

Hey

Explanation:

Covalent bonds and ionic bonds are two different ways of how elements bond to each other. The main difference between covalent and ionic bonds is that ionic bonds occur between two species which are electrostatically attracted towards each other, whereas covalent bonds occur covalently through the sharing of electrons between their outer shells.

<em>hope this helps</em>

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Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied.

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Thepotemich [5.8K]
They show evidence of other life beyond us, when we see fossils they give is info that can determine other scientific data that is important for human life
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3 years ago
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