Experts say the genetic problems affect about one in 200 children born in Britain.

专家表示，在英国出生的儿童中，每200人中就有一人受到遗传问题的影响。

However, scientists say the mitochondria in some women can pass genetic problems on to their babies.

然而，科学家们表示，一些女性体内的线粒体可以将遗传病遗传给她们的婴儿。

Fertility specialists now grow embryos longer in the lab and carry out more tests for genetic problems.

生育专家现在延长了胚胎在实验室发育的时间，而且会对遗传问题进行更多测试。

People with a family history of some cancers or genetic problems with the endocrine system should not take such drugs.

有某些癌症家族史或内分泌系统遗传问题的人不应服用此类药物。

The treatment of combining DNA from a mother, father and an egg donor is supposed to help women who have a genetic problem that can be passed to their babies.

这种将亲生父母与卵子捐赠者的DNA结合的治疗方法，可以帮助有遗传问题的女性，因为这些问题可能会遗传给她们的孩子。