Question

If there is a genetically mutated cow that lacks the Prnp gene, is it safe to say that this cow is immune to Mad Cow disease?

a) Yes
b) No
c) Partially
d) Depends on environmental factors

Answer 1

If a cow lacks the Prnp gene, it has a reduced risk of developing Mad Cow disease, but it does not guarantee complete immunity.

Step-by-step explanation:

If there is a genetically mutated cow that lacks the Prnp gene, it can be safe to say that this cow has a reduced risk of developing Mad Cow disease.The Prnp gene is responsible for encoding a protein called PrP, which can misfold and form prions that cause the disease. Without the Prnp gene, the cow would not produce this protein or prions, reducing the risk of infection. However, it is important to note that while the cow may have a reduced risk, it does not guarantee complete immunity to the disease. Other factors, such as exposure to the disease-causing prions from external sources, can still contribute to the development of Mad Cow disease.