Genetics and Behavior Quiz

What is the basic unit of inheritance?

• Cell

• Protein

• Gene

• Chromosome

How much of our genes are inherited from each parent?

• 75%

• 100%

• 50%

• 25%

What does the genotype of an individual refer to?

• Their complete set of genes

• Their physical appearance

• Their genetic mutations

• Their environmental influences

What influences an individual's phenotype?

• Neither their genotype nor environment

• Only their environment

• Only their genotype

• Both their genotype and environment

What is the study of epigenetics concerned with?

• Inheritance of physical traits

• Studying the genome

• Changes in genetic expression due to environmental causes

• Changes in genetic code

What does heritability refer to?

• The ability to inherit physical traits

• The extent to which characteristics are attributable to environmental factors

• The extent to which characteristics are attributable to genetic factors

• The study of genetic mutations

What is the role of the MAOA gene?

• It produces an enzyme that affects neurotransmission

• It affects muscle growth

• It determines blood type

• It influences height

What was the aim of Brunner et al.'s study?

• To find a cure for genetic disorders

• To study the heritability of mental illness

• To assess the influence of the MAOA gene on aggression

• To assess the influence of the MAOA gene on intelligence

What type of study did Caspi et al conduct in 2002?

• Experimental study

• Longitudinal study

• Cross-sectional study

• Case study

What do twin studies help to understand?

• The psychological differences between siblings

• The influence of genes versus environmental causes on behavior

• The influence of education on intelligence

• The physical similarities between twins