Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[Q]: Every human being carries six to ____ abnormal recessive genes.
[A]: eight


[Q]: Fruit is a silique opening by ____ valves.
[A]: two


[Q]: Women begin to have heart attacks about ____ years later than men.
[A]:
ten