Which mutation would be harmful to the farming industry? a mutation that causes cows to produce more milk
a mutation that causes sheep to have more wool
a mutation that causes female pigs to have less offspring
a mutation that causes an increased crop yield

a mutation that causes female pigs to have less offspring

Explanation:

A mutation that causes female pigs to have fewer offspring

Explanation:

In the farming industry, more product is better. If cows produced more milk, farmers would make more money.

If sheep produced more wool, the farmers would profit.

If there was an increased crop yield, the farmers would benefit.

However, fewer pigs means less money, so that is the only possible answer.

a.) a destruction fo cells by viral reproduction