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Sever21 [200]
4 years ago
15

Normal hemoglobin is a tetramer, consisting of two molecules of β-globin and two molecules of α-globin; normal hemoglobin molecu

les do not associate with each other. in sickle-cell disease, the change in a single amino acid results in mutant hemoglobin tetramers, which associate with each other and assemble into large fibers. based on this information alone, what can we conclude about the changes in the structure of sickle cell hemoglobin as compared to normal hemoglobin?
Biology
1 answer:
denpristay [2]4 years ago
8 0
Established on the data, sickle cell hemoglobin displays altered primary structure and altered quaternary structure; the secondary and tertiary structures may or may not be altered. The sickle cell disease is a cluster of disorders that disturbs hemoglobin, the molecule in red blood cells that transports oxygen to cells all over the body. A person with this disorder have uncharacteristic hemoglobin molecules named hemoglobin S which can interfere with red blood cells into a sickle or crescent shape.
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How does air pressure affect weather
UNO [17]

Answer:

<em>Hewo, Kiluawa (sorry if i spelled it wrong) </em>

Explanation:

High Pressure

Basically, high pressure occurs in an area if the atmosphere over that particular area becomes heavier. As a result, the heavy air above will come down to the Earth’s surface. And the air present in that area will move away to create space for the heavy air.

Commonly, the warmer months experience high pressure. You’re more likely to enjoy a comparatively dry and stable weather pattern in those months. Besides, you’ll find the skies in high pressure areas very clear. You’ll also feel a gentle breeze there that will cool down the surrounding areas.

Low Pressure

On the other hand, the air above a low pressure area is comparatively much lighter than the air below. As the heavy air on the Earth’s surface cannot go further below, it pushes away the lighter air above. As a result, a vacuum is created on the surface level and the air in the surrounding areas rushes towards it to fill up the void space.

Meanwhile, the rising air starts to cool down and form clouds in the sky. These clouds then come down to the Earth in the form of rain. Sometimes, snow is also formed depending on the temperature of the surrounding areas.

In general, colder months of the year experiences more low pressure situations. By now, you probably can guess why. The cold air on the surface level is heavier than the air above. And these low pressure areas are the reasons behind unstable weather conditions like snow, ice, rain, storm, etc.

Hope This Helps!

5 0
3 years ago
PLEASE HELP!!Why might humans not have widespread regeneration abilities?
aev [14]

Answer:

Humans have some stem cells, but those cells are not easily available to help with healing. Most other mammals are the same, so they aren't good at regeneration either. Amphibians and some fish have stem cells that are more easily available, and are usually pretty good at regeneration.

7 0
3 years ago
Match each form of energy with its definition. The energy of the bonds between atoms.
Licemer1 [7]
Chemical energy, hope this helps. Correct me if im wrong but im sure its chemical energy
7 0
3 years ago
Based on this diagram, do you think that organisms of the same order will share a stronger evolutionary
dlinn [17]

From the diagram above, I dont think that organisms of the same order share a stronger evolutionary relationship than organisms in the same phylum. This is because, after kingdoms, the subsequent categories of increasing specificity are: phylum, class, order, family, genus, and species.

<h3>Levels in taxonomic classification</h3>

At each sublevel in the taxonomic classification system, organisms become more similar.

Organisms that share similar physical features and genetic sequences tend to be more closely related than those that do not.

Scientists use a tool called a phylogenetic tree to show the evolutionary pathways and connections among living organisms.

<h3>Phylogenetic tree</h3>

A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms

<h3>Taxonomical classification</h3>

Taxonomy is the scientific study of naming, defining and classifying groups of living organisms based on shared characteristics. There are seven main taxonomic ranks:

  • kingdom
  • phylum ( in animals )or division ( in plants )
  • class
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Learn more about taxonomy:

brainly.com/question/2375388

3 0
2 years ago
Useful materials
stiv31 [10]

Answer:

Explanation:

The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.

Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.

The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.

Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.

3 0
3 years ago
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