Which statement about ova is true? A. Ova are released throughout a woman's
lifetime.

B. Ova are generated in the uterus.

C. Ova have one set of chromosomes.

D. Ova move from the vagina into the ovaries,

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.