Answer:
option A 50%
Explanation:
Ability to roll the tongue is dominant to people who cannot. thus only one copy is needed for the trait to be expressed. Thus, a tongue roller could be XTXT, XTXt or XTY and a non could be XtXt and XtY.
Thus one can have the highest percentage of non-tongue roller to be 50% which is from a cross between a tongue roller male and a non tongue roller female.
Answer:
world go warm climate go hot
Archean and Proterozonic which are both broken into early middle and late periods
Reflex action in the diagram would be the response. Diagram extracted from online.
