Question

Harvesting organs from animals may provide the solution to the shortfall of human donors. However, two technical obstacles need to be overcome before
animal-human transplants can become a medical reality. One is that human immune systems often reject foreign tissue. The second problem comes from
the risk of disease transfer
According to George Church of Harvard Medical School, genetically engineering pigs may provide the key to overcoming this second problem. Due to their
size, pigs are natural candidates for animal-human transplants, but their DNA is naturally rife with dangerous PERVs, or porcine endogenous retroviruses.
An innovative gene-editing technique known as CRISP has the capacity to identify and delete specific sequences out of the genome. Upon discovering that
a single porcine gene enables PERVs to infect human hosts, Dr. Church and his colleagues turned CRISP against the culprit. Initial results suggest that this
procedure may be a success, preventing human infection without compromising the pig cells.
HARVESTING. Disponível em: <www.newsweek.com/endhuman-organ-shortages-and-other-science-breakthroughs-3861322 Acesso em: 13 maio 2018. Adaptado.
Glossary
rife with: cheio de
culprit: culpado
(Unipe-Medicina) – Fill in the parentheses with T (True) or F (False).
As far as transplants are considered, the text says that
( There's a shortage of human donors nowadays.
Transgenic pigs are promising organ donors for human transplants.
( Animal-to-human organ transplants have already shown to work satisfactorily.
(Our immune systems fail to attack foreign material that enters the body.
The correct sequence, from top to bottom, is​

Answer 1

c) T T F F

(True, true, false, false)

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