quiz 17 Flashcards
In plants,where are stem cells found?
In meristems
Define cloning
A scientific process by which genetically identical copies of animals or plants are made
Give a disadvantage of using embryonic stem cells
Ethical concerns as the embryo is a potential person
What are some social issues with using stem cells
A lack of understanding, whether the benefits outweigh the risks, may not be peer reviewed
Give an example of a location where stem cells can be found in adults
bone marrow
In plants,where is the meristem found?
The tips of plant shoots and roots
What are some clinical issues with using stem cells?
No guarantee of success, difficult to find suitable donors or embryonic stem cells, risk of transfer of viral infections
Give a disadvanatge of using stem cells from adults
They cannot differentiate into any type of cell
Give 2 uses of plant cloning
protect rare species from extinction, make large numbers of plants with desirable characteristics
Give 2 ways in which a doctor can avoid the issues with using donor stem cells for treatment
Using a close family members stem cells or cells from a doctor that matches closely to their tissue type
Define embryo
The resulting ball of cells formed after an egg cell is fertilised by a sperm cell
What are some ethical objections to using stem cells?
Embryos may get damaged when the stem cells are removed,raises ethical concerns and people may object to destroying embryos
What is an advantage of using a patient’s own adult stem cells to treat a disease?
The stem cells would be genetically identical to the patients so would not be rejected
