There are several ways that a mutation may occur. Which of the following is not a way for a mutation to occur during the DNA replication (copying) process? A Sections of genes can be removed. B Sections of genes may be added. C All of the organism’s genes are removed. D An entire gene may be reversed. help plzzz

Which statement best describes the reason why the allies responded to the berlin blockade by airlifting supplies to the city? they did not have enough troops to attack the ussr. they controlled only the water routes to berlin. they controlled only one land route into west berlin. they did not want to use military force against the ussr.