Explain why stem cell research is a controversial subject. What are some of the sources for stem cells?

Answers

Answer 1

Answer:

Stem cell research is a controversial subject because they are human embryonic stem cell (hESC), and obtaining stem cells involves the destruction of human embryos

Explanation:

Answer 2

The inner cell mass of a 5 to 7-day-old blastocyst can be used to generate pluripotent stem cell lines. Human embryonic stem cell investigation, on the other hand, is morally and politically fraught since it encompasses the killing of human embryos.

What are stem cells?

Stem cells are the primary raw material of the body, the cells that give rise to every other cells with specialized functions.

Under the right circumstances, stem cells differentiate to form the most cells known as daughter cells in the body or in a research lab.

Stem cells are mostly found in bone marrow. This is how they divide in order to produce new blood cells.

Once mature, blood cells end up leaving the bone marrow and reach the bloodstream. A small number of immature stem cells enter the bloodstream.

Bone Marrow has long been thought to be the best source of stem cells.

Previously, if a patient required a stem cell transplant but didn't have access to umbilical cord blood stem cells, they earned a bone marrow transplant.

Thus, this is the reason to have stem cell research as a controversial subject.

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Related Questions

When a person runs his body temperature goes up why and how it comes to normal

Answers

Answer:

the average person today actually runs then you will notice that your skin temperature is going to go down not up

Explanation:

what is hiberbation?​

Answers

Answer:

Explanation:

                         Hibernation is an adaptation that allows an animal to escape cold weather and food shortages over winter.

How is mitochondrial DNA (mtDNA) typing used in forensic science?
A suspect’s mtDNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
A suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene.
A suspect’s nuclear DNA sample is matched to an unknown sample of nuclear DNA that was found at a crime scene.
A suspect’s nuclear DNA sample is matched to an unknown sample of mtDNA that was found at a crime scene

Answers

Answer:

(B)  A suspect's mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene

Explanation:

I got it right lol and have a good day <3

Option B A suspect’s mtDNA sample is matched to an unknown sample of mtDNA that was found at a crime scene is correct.

What is Mitochondrial DNA (mtDNA) typing?

Mitochondrial DNA (mtDNA) typing is used in forensic science to analyze DNA evidence in cases where the DNA material is degraded or present in small amounts, such as in hair shafts, bones, and teeth.

mtDNA typing is also useful in cases where a person's nuclear DNA (which is unique to each individual) is not available or is contaminated with DNA from multiple sources.

mtDNA is inherited maternally and is present in multiple copies in each cell, making it more abundant and resistant to degradation than nuclear DNA.

Forensic scientists can compare the mtDNA profile of a suspect with mtDNA evidence found at a crime scene to determine whether the suspect's DNA could have contributed to the evidence.

Since mtDNA is not unique to each individual and is shared among maternal relatives, mtDNA evidence alone cannot definitively identify a suspect, but it can help exclude individuals who do not share a common mtDNA profile with the evidence.

Hence option B is correct.

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Using your observations and knowledge of galaxies, is there a pattern or organization to how the billions of stars are arranged in a single galaxy or do you feel it is random?

Answers

Billions of stars in a single galaxy are arranged in :  Pinwheel pattern with four major arms

What is a galaxy ?

A galaxy is a collection of, billions of stars, dust and gases. galaxies are arranged in the universe in gravitational bound clusters. While the billion stars in a singles galaxy are arranged in pinwheel pattern with four major arms.  

Hence we can conclude that Billions of stars in a single galaxy are arranged in :  Pinwheel pattern with four major arms

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Blood spatter can indicate:

the direction in which the blood was travelling.

the angle the blood hit a surface.

the origin point of the stain.

All of the above.

Answers

Answer:

All of the above....

....

The direction in which the blood is falling

which structure will be found in the nucleus of body cells in a woman?

a) x allele

b) x chromosomes

c) y allele

d) y chromosome

Answers

The x chromosomes are found in the nucleus of body cells in a women. Thus option b is correct.

What are chromosomes?

Chromosomes are defined as a thread like structure located in the nucleus of every cell in our body and are formed of tightly coiled DNA surrounding proteins.

Chromosomes plays very important role in human body.

The primary purpose of chromosomes is to transport DNA and genetic information from parents to offspring.

It play a vital role during cell division.

They keep DNA from becoming twisted and damaged.

There are basically two types of chromosomes.

AutosomesSex chromosomes

Thus, the x chromosomes are found in the nucleus of body cells in a women. Thus option b is correct.

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It’s not C what is the answer

Answers

My best answer would be B I know tornados have updrafts as well as hurricanes. A storm has updrafts that cause tornados.

define the term gene mutation​

Answers

Answer:

it is the change in one or more genes

Name the two parts of the pectorial muscles.

Answers

Explanation:

Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder.

There are two such muscles on each side of the sternum (breastbone) in the human body:

1. pectoralis major and

2. pectoralis minor.

Why is a control group important in a scientific experiment?
Group of answer choices

It gives the scientist control over WHEN to change variables.

It is a comparison to the group where variables are changing.

It gives the scientist control over WHICH variables to change during the experiment.

It is the group where variables are changing so it controls the results of the experiment.

Answers

Explanation:

because it allows you to eliminate or isolate variable/ it allows the experiment to minimize the changes in all the variables except the one being test.

I'm not gonna choose bc I'm not 100% sure either so read what's above, think it over and choose wisely

hope I helped a little and good luck :)

Which of the following holds the least amount of carbon?

Oceans
Glaciers
Plants
Soil

Answers

Answer:

Its the Ocean.

Explanation:

This is the correct answer I hope this helps you out.

Oceans hold the least amount of carbon compared to glaciers, plants, and soil.  Therefore, option (A) is correct.

What is carbon cycle?

Carbon exists in the oceans mainly in the form of dissolved inorganic carbon (DIC) in the form of bicarbonate and carbonate ions. The oceans act as a carbon sink, absorbing around 25% of the carbon dioxide emitted by human activities. However, the amount of carbon stored in the oceans is relatively low compared to other carbon reservoirs such as glaciers, plants, and soil.

Glaciers are made up of compacted snow and ice and can hold large amounts of carbon. Glaciers are important for the carbon cycle as they can sequester carbon for hundreds of years. Plants also store large amounts of carbon in the form of organic matter through the process of photosynthesis. Soil also stores significant amounts of carbon in the form of organic matter.

Overall, while oceans do play a role in the carbon cycle, they hold the least amount of carbon compared to other reservoirs. The carbon cycle is a complex system that involves many reservoirs and processes, and understanding the dynamics of each of these components is crucial to our understanding of global climate change.

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A pure substance containing only one kind of blank hurry

Answers

Answer:

elements

Explanation:

A man has three sons.

What is the chance of his next child being a son?

Answers

50%, his previous children’s gender doesn’t effect the probability of his future ones.

How does coronavirus causes severe pneumonia?

Answers

Answer:

please mark me brainliest

Explanation:

The new coronavirus causes severe inflammation in your lungs. It damages the cells and tissue that line the air sacs in your lungs. These sacs are where the oxygen you breathe is processed and delivered to your blood.

Answer:

The new coronavirus causes severe inflammation in your lungs. It damages the cells and tissue that line the air sacs in your lungs. These sacs are where the oxygen you breathe is processed and delivered to your blood. The damage causes tissue to break off and clog your lungs

Explanation:

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PLSS HELPP!!- 1 Provide the height of each plant at Week 2, Week 5, and Week 7 2 At what points in time did each plant stay the same height? 3 Which plant grew the fastest? Which plant grew the slowest? Hint: Consider the slope of each line.​

Answers

Answer:

hii there

Explanation:

( 1 )

Week 2 = plant A = 50 CM.

plant B = 30 CM.

plant C = 20 CM.

Week 3 = plant A = 70 CM.

plant B = 40 CM.

plant C = 30 CM.

Week 5 = plant A = 80 CM.

plant B = 60 CM.

plant C = 30 CM.

Week 7 = plant A = 90 CM.

plant B = 75 CM.

plant C = 40 CM.

( 2 )

there are no points in which each plant stay at the same height

( 3 )

( 1 ) Plant A grew the fastest.

( 2) plant C grew the slowest

Hope it helps you

have a good day dear :)

Answer:

Week 2 = plant A = 50 CM.

plant B = 30 CM.

plant C = 20 CM.

Week 3 = plant A = 70 CM.

plant B = 40 CM.

plant C = 30 CM.

Week 5 = plant A = 80 CM.

plant B = 60 CM.

plant C = 30 CM.

Week 7 = plant A = 90 CM.

plant B = 75 CM.

plant C = 40 CM.

( 2 )

there are no points in which each plant stay at the same height

( 3 )

( 1 ) Plant A grew the fastest.

( 2) plant C grew the slowest

Hope it helps you

have a good day dear :)

Explanation:

The combination of chemical reactions that make up an organisms help to organize raw materials into living matter

Answers

Answer:

Metabolism

Explanation:

what is plasmolysis?​

Answers

Answer:

plasmolysis is the process of shrinkage or contraction of the protoplasm of plant cell as. result of loss of water from the cell.

Answer:

Plasmolysis is defined as the process of contraction or shrinkage of the protoplasm of a plant cell and is caused due to the loss of water in the cell. Plasmolysis is an example of the results of osmosis and rarely occurs in nature.

The word Plasmolysis was generally derived from a Latin and Greek word plasma – The mould and lusis meaning loosening.

Explanation:

Answer from Gauth math

Genetic engineering involves various stages.

1 human DNA is inserted into bacterial plasmid DNA
2 recombinant plasmid inserted into bacteria
3 restriction enzyme cuts bacterial plasmid DNA
4 restriction enzyme cuts human DNA

What is the correct sequence for genetic engineering?​

Answers

Answer:

4, 3, 1, 2

Explanation:

FIRST: cDNA is synthesized to be used as a gene of interest: processed (spliced) mRNA (no introns) is reverse transcribed to cDNA using reverse transcriptase, an enzyme from retroviruses

SECOND: Restriction enzyme used to cut GOI

THIRD: Same Restriction enzyme used to cut plasmid (sticky ends are created)

FOURTH: GOI connects/hybridizes with plasmid due to base-pairing

FIFTH: DNA ligase connects the recombinant DNA strands

Hello! I can't find the constants and am a little confused. Could you help me please??​

Answers

Answer:

The constants are just variables that are kept constant throughout the experiment. For example, even though the question did not mention this, we can assume that sunlight is a constant, otherwise it wouldn't be a fair experiment.

Some of the constants could be...

- Sunlight

- Water

- Room temperature

- Hours of light

- Soil quality

Let me know if this helps!

ASAP
What hormone(s) do Ovaries produce?

A. Progesterone
B. Testosterone
C. Testosterone and Estrogen
D. Progesterone and Estrogen

Answers

Answer:

Progesterone and estrogen

Answer: Progesterone and Estrogen

Explanation: Is what they produce

Hydrocarbons are not very soluble in water because

the majority of their bonds are polar covalent, which repel water molecules
they contain ions, which make the entire molecule hydrophilic
they are less dense than liquid water, so they float on the surface
most of their bonds are nonpolar covalent, so they are not attracted to water

Answers

Explanation:

most of their bonds are nonpolar covalent, so they are not attracted to water

Answer:

D

Explanation:

took test

HELLLLLLLLLLP MEEEEEEEE PLS

THIS QUESTION IS NOT HARD BUT MY BRAIN DOESNT GET IT.
the last answer choice is blocked but it says
0 only sample 4​

Answers

Answer:

3 and 4

Explanation:

Both appear to be up river which mean they're coming DOWN to contaminate the uptake. If they're ahead of the uptake facility they're not going to show up in the water. I only know this because of City Skylines :)

what do you mean by acrophobia and ephebiphobia?​

Answers

Answer:

Acrophobia ------- intense fear of heights

Ephebiphobia -----the fear of youth

Answer:

Acrophobia means extreme or irrational fear of height .Ephebiphobia is the fear of youth

hope your day goes great.

Question 7
All living things are made of cells.
Lion
True
False

Answers

Answer:---

True. Cell theory makes three major assertions: 1. All living things are made of cells. 2. Cells are the smallest unit of life. 3. Cells can only...

True. Because all living things are made of cells

What is the process that human
beings undergo to release ATP from
carbohydrates?
A. cell duplication
B. cellular genesis
C. cellular respiration
D. photosynthesis

Answers

Answer:

[tex]\huge\boxed{\sf Option \ C}[/tex]

Explanation:

Cellular respiration is the process in which carbohydrates (Glucose) are broken down into carbon dioxide and water in the presence of oxygen and a lot of energy is released which is further used for ATP synthesis and ATP is released!

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807Peace!

I want this answer right now​

Answers

Answer:

1.  The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.

2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle

3. The valves prevent the backward flow of blood.

4. Arteries carry oxygenated blood while veins carry deoxygenated blood.

5. Eat Healthy, Stay Active

Explanation:

PLZ MARK AS THE BRAINLIEST

HAVE A GOOD DAY

: )

Answer:

Answer:

1.  The Heartlies in the front and middle of your chest, behind and slightly to the left of your breastbone.

2. Right Atrium, Left Atrium, Right Ventricle, Left Ventricle

3. The valves prevent the backward flow of blood.

4. Arteries carry oxygenated blood while veins carry deoxygenated blood.

5. Eat Healthy, Stay Active

Explanation:

PLZ MARK AS THE BRAINLIEST

HAVE A GOOD DAY

: )

Explanation:

thanks for question

What is one question you have about the study of life? 3-4 sentences

Answers

Answer:

my research into Sustainability Engineering, Time Use shows itself to be a very important variable. Together with ecological impacts (Ecological Footprint or Planetary Boundaries), Time Use to meet needs is a required unit of measurement. I am using both Max Neef's theory of Fundamental Human Needs, and Doyal & Gough's theory of Human Need.

In my current paper, I am wanting to make a number of statements, and I would like to know of existing publications that have made similar conclusion.

hope you like the explanation.

thanks-:)

감사합니다-

which instrument is used to measure volume of liquid in laboratory?​

Answers

Answer:

Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.

Explanation:

If you like my answer than please mark me brainliest thanks

briefly describe what the outer layer of bone tissue is like

Answers

Answer:

dinkachika

jingalalalalallalal

Answer:

Plz refer image for your answer

Explanation:

Hope it helps.. if yes plz mark me as brainliest

mitosis cell division are required to form 64 cell for one cell?
a.4
b.6
c.16
d.32

Answers

Answer:

im not sure

Explanation:

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