Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

The properties of the alkali metals are similar to each other as expected for elements in the same family.
The properties of the alkali metals are similar to each other as expected for elements in the same what?

When the smooth muscle relaxes, the arterioles dilate, allowing blood to enter the capillaries.
When the smooth muscle relaxes, the arterioles dilate, allowing blood to enter the what?

Presence of defect mtdna and undefected mtdna increases the chances of someone inheriting a mitochondrial disease.
What increases the chances of someone inheriting a mitochondrial disease?