1) What is the unique thing about stem cells that makes them so desirable for therapeutic use?

a. They develop into nerve cells and can be used by stroke victims.

b. They develop into organs needed for transplant.

c. They are found in reproductive tissue.

d. They can develop into many different tissue types.

2) What is the most common source of embryos for stem cell harvest?

a. unused sperm frozen in sperm banks

b. unused embryos from fertility clinics

c. cells cultured in petri dishes

d. embryos removed from animals

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Jean KeelingLv2

19 Aug 2018

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Related questions

Please rephrasethese sentences:

Genetic modification / engineering
Cloning gives parents the opportunity to choose whatcharacteristics they want their children to have. For instance, theparents want their child to have Albert Einsteinâs IQ. Theextraordinary athleticism of Michael Jordan.

Some scientists think human cloning is a good matter becausehuman being can control their evolvement, so that we can âcreateâmore artists, athletes, and scientists. If we can choose in thisway, we can enhance humanâs achievement.

The healthiness of infants

Cloning can eliminate all the worrying regarding the childâshealth. Scientist can alter the genes to ensure a healthy child.For example, if a mother has given birth to 2 children whichsuffered from Downâs syndrome. Doctors can manipulate and balanceout the number of chromosomes in the embryo to give the mother anormal and healthy child.

Better understanding of genetic diseases

Scientists and ethicists who favor human cloning research arguethat cloning may provide a better understanding of the nature ofgenetic diseases and aid in the production of embryos from whichcells could be obtained to grow various organs for organtransplant.

Help improve lives

The cloning of genetic modified animals can have certainmedical, agricultural and industrial applications. For example,genetically modified cattle can produce milk with certain drugsinside in mass production.
The fundamental criterion of medical science must be the defenceand promotion of the integral good of the human person, in keepingwith that unique dignity which is ours by virtue of ourhumanity.
Human cloning (including the cloning of embryos) has stirredcontroversy in the society since the success in cloning of Dolly inJuly, 97 in Roslin Institude, Ireland.
So, what are the pros and cons of cloning? Will it lead to theextinction of human or improve our lives? What are the religiousperspectives toward cloning? Let us start discussing its ethicalproblems by its advantages first.

Federal statistics show that in vitro fertilization and relatetechnologies have a success rate of less than 20%. Hence cloningmay provide en efficient solution to infertility. This is the keypoint that advocates argue for cloning. Cloning is believed to besolving the problem of infertility. Women that are infertile canhave their own babies with the help of this technique by implantingthe cloned embryos into their bodies. This can eliminate the mentaland physical pains among the infertile couples.
Provide organs for transplantation
pig livers can be transplant to a patient which suffers from liverfailure but there is no human liver available. In this case, thepig liver can be transplanted to the patient temporarily until hecan find a suitable human liver.

The opponents think that this will deprive the human value,because the child is born on purpose, thatâs to rescue otherâslife. The child will become the equipment of therapy
Despite the painful circumstances, the only way to treat this casemorally is to let the patient dies, not to clone another child.

Therapeutic applications of stem cells potentially could treatillnesses including: Parkinsonâs disease, diabetes, Alzheimerâsdisease, stroke, heart attack, multiple sclerosis, blood, bone andbone marrow ailments, severe burns by providing skin grafts, spinalcord injuries, and cancer patients who have lost cells and tissueto radiation and chemotherapy.