Emma and Julie are identical twins and are friends with Roman and Octavia, non-identical (fraternal) twins. How likely are Emma and Julie to have similar personality traits, such as attitude, when compared to Roman and Octavia?

A) twice as likely

B) just as likely

C) half as likely

D) no likelihood

D) no likelihood

Explanation:

Identical twins are monozygotic since they are formed from the same zygote. The zygote splits into two parts sometime during the pregnancy and results in formation of two embryos. Identical twins share genetic makeup and hence look alike. However the personality traits like attitude may or may not be same since it depends on surrounding environment and the way the child perceives it while growing up.

No likelihood. Fraternal or identical no twins have the same biological personality.