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3 years ago

Which is the most likely reason that stem cell research is controversial?

Biology

2 answers:

jonny [76]3 years ago

4 0

Answer:

The correct answer is that it involves human embryonic stem cells (ESC).

Explanation:

Stem cells are regenerative and differentiating cells which can develop into any type of cells even after they remain inactive for a long time. They are the first differentiation cells of embryo proper which are formed just after the fertilization.

The research on these Embryonic stem cell (ESC) is a reason for legal and ethical issues which led to the social controversy after the first successful culturing of human ESCs in the laboratory in 1998 by James Thomson and John Gearhardt as "it destroys the embryos to obtain the pluripotent ESCs.

Thus, it involves human embryonic stem cells (ESC) is the correct answer.

Maksim231197 [3]3 years ago

3 0

It's controversial because the best source of stem cells is a human embryo (an aborted fetus).

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Ways of transmission of coronavirus from infected person to others?

Hatshy [7]

Explanation:

We know that the disease is caused by the SARS-CoV-2 virus, which spreads between people in several different ways. The virus can spread from an infected person's mouth or nose in small liquid particles when they cough, sneeze, speak, sing or breathe.

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3 years ago

Multiple Select Question

Diano4ka-milaya [45]

The TRUE statements are 'proteins often have more than one transmembrane domain'; 'they are regions of a transmembrane protein that actually pass through the lipid bilayer' and 'they are usually shaped like alpha-helices'.

A transmembrane domain is a membrane-spanning region within a protein. The transmembrane domains are hydrophobic regions that can be inserted into the cell membrane.

The transmembrane domains are usually shaped like alpha-helices.

This secondary structure (alpha-helices) causes the amino acid R-groups to project radially, thereby these side chains can interact with each other.

Proteins need only a single transmembrane domain to be anchored to the membrane, but they often have more than one.

For example, Acyl-coenzyme A cholesterol acyltransferases 1 and 2 (ACAT1 and ACAT2) have multiple transmembrane domains.

The transmembrane domains are regions of a transmembrane protein that actually pass through the lipid bilayer.

These domains contain amino acids with hydrophobic R-groups that pass through the membrane and interact with the hydrophobic tails of the fatty acid chains present in the lipid bilayer.

The transmembrane domains anchor transmembrane proteins to the lipid bilayer.

The interactions between amino acids of the transmembrane domains and fatty acids in the lipid bilayer help to anchor transmembrane proteins and stabilize the cell membrane.

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2 years ago

GlaxoSmithKline would become more ________ if it starts allowing its lab scientists to set the priorities and allocate the resou

Serhud [2]

GlaxoSmithKline would become more organic if it starts allowing its lab scientists to setthe priorities and allocate the resources. A) profitableB) mechanisticC) diversifiedD) organic . So the correct answer is D) organic.

The manufacturing giant GlaxoSmithKline (GSK) is well-known for its consumer health goods, vaccines, and well-known prescription drugs. The company offers cancer, heart disease, and migraine therapies in addition to hepatitis A, hepatitis B, and whooping cough vaccines.

Other products include dental care items, over-the-counter medicines, healthy beverages, and smoking cessation items.Numerous well-known prescription pharmaceuticals include the following: Imitrex (sumatriptan), Levitra (vardenafil), Augmentin (amoxicillin/clavulanate), Avandia, and Paxil, an antidepressant and an antidiabetic (rosiglitazone).

According to a new ranking of 20 of the largest pharmaceutical firms in the world based on how ethically they treat the poor, Britain's GlaxoSmithKline received the highest ratings, followed by Denmark's Novo Nordisk and US-based Merck.

#the correct question is:

GlaxoSmithKline would become more if it starts allowing its lab scientists to setthe priorities and allocate the resources. A) profitableB) mechanisticC) diversifiedD) organic .

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2 years ago

What is the functional advantage of the alveolar walls being so thin?

Sati [7]

Alveolar walls are thin to enable the quick passage of oxygen in and out of the lungs. The lungs works hand-in-hand with the heart and also is responsible in converting blood that's de-oxygenated into an oxygenated blood that is usable by the organ systems of the body. The alveolar walls are also designed to have thin membranes so that it can expand and constrict quickly allowing us to breather properly.

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3 years ago

Please answer the 5 questions thanks

olga2289 [7]

Answer:

option A

Explanation:

because plants give oxygen

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3 years ago

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