Recent Studies of the Connection Between Specific Genes and Aspects

question 99

Multiple Choice

Recent studies of the connection between specific genes and aspects of temperament have demonstrated that

• A) most temperamental capacities have no genetic component.
• B) genetic temperamental tendencies are sometimes more likely to be expressed when the family environment is suboptimal and sometimes when it is optimal.
• C) individual differences in positive emotions tend to be more genetically based than are individual differences in negative emotions.
• D) Recent studies have demonstrated all of these.