Compare and contrast dominant and recessive genes

The main difference between dominant and recessive genes is that dominant genes get phenotypically exerted faster compared to genes that are being recessively transfered. These genes must have to be presented 2x more often (both alleles have to be recessive) for them to be exerted phenotypically. 

Ithink it’s d. that should be correct.

Few days to several months depending on the severity of the stroke ;