When did barack obama became a president

The two candidates engaged in three presidential debates in September and October 2008. On November 4, Obama won the presidency with 365 electoral votes to 173 received by McCain. Obama won 52.9% of the popular vote to McCain's 45.7%. He became the first African American to be elected president.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

voluntary muscles are controlled by the cerebellum.