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]: Inversions have the classic double loop at meiosis, and have ____ crossovers when heterozygotes.
[A]: no


[Q]: Tobacco companies account for ____ of the five biggest billboard advertisers in the country.
[A]: four


[Q]: Tumors usually shrink within ____ to two days of therapy.
[A]:
one