Wmany more cases of chlamydia we
ere
-4. how many
reported for
ple between 20 and 24 years of
for people between 15 and 19 years of
age than for people
age?
a. 58,833
b. 128,068
c. 268,015
d. 398,831

Which of the following statements concerning cancer and mutations is correct? a: cancer can only occur with a mutation in a somatic cell. b: usually, multiple mutations are required in different genes to cause cancer. c: none of the other answer options is correct. d: cancer can only occur with a mutation in a germ cell. e: usually, a single mutation is all that is required to cause cancer.