In modern world, prejudice and discrimination are link. Prejudice is defined as the unjustified negative attitudes that some people hold against others of a certain group of people.
Prejudice can include attitudes such as racism, racism and homophobia. Prejudices have no reasonable basis. In the other hand discrimination includes all of the actions that people take against others they have prejudices toward. Segregation of blacks and whites during American Civil Rights Movement is good example of discrimination. Discrimination play a major role in the maintenance of prejudice and inequality.
Take for example the uproar caused by re-election of President Obama for his second term president. After his re-election, some states began threatening to secede from the United States, claiming that a black man could not run a country, or that Obama wasn’t truly a US-born citizen. These opinions, which have evidence that prove the contrary, are rooted in racism. In this case the racism was the prejudice, and the threat to secede was the discrimination.