0% because if straight hairline is recessive that means it would need 2. Since, Widows peak seems to be dominant, then there would need to be at least 1 dominant. But, there are both people that have recessive traits.
Starch is present in saliva.
I don't know which food choice you made so I can't explain why you got the results you did.
<span>A fast-flowing river of air that forms when two air masses of very different temperatures meet is called a jet stream :)</span>