A Scientist Used CRISPR-Cas9 to Inactivate the Pol Gene for DNA

question 56

Essay

A scientist used CRISPR-Cas9 to inactivate the pol gene for DNA polymerase in the porcine endogenous retrovirus (PERV)sequences of a pig embryo.The resulting pig embryo cells were then placed in proximity of human cells,but there was no infection of the human cells by the PERVs.Why were the PERVs no longer able to infect the human cells?

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Definitions:

Shortage

A scenario in which the need for a product surpasses the amount available at a particular price.

Quantity Demanded

The total amount of goods or services that consumers are willing and able to purchase at a given price level in a given period.

Equilibrium

A state in which market supply and demand balance each other, resulting in stable prices.

Quantity Demanded

The complete quantity of a product or service that consumers are eager and financially able to acquire at a certain price.