Exam 4: Genes, Evolution, and Behaviour

As a genetic researcher, you measure the similarity of a variety of characteristics among family members who have various degrees of genetic relationship. You are measuring

Some research has shown that identical twins raised apart are still more similar than fraternal twins raised together.

Acts of aggression by lone attackers or organized cooperative groups is exquisitely linked to __________________.

Why do women in all cultures tend to marry older men?

Genes are responsible for the expression of most human traits. However, if we see a particular trait (e.g., hair colour) we cannot be certain that it is due to genes. Why?

Male animals often fight with one another over mates. One way to prevent this from happening all the time and to reduce serious damage is to

Although earlier estimates predicted the human genome to consist of ________________ genes, research has indicated that approximately _________________ genes actually exist.

Techniques in which pieces of DNA from an organism are combined with DNA from other organisms and then allowed to proliferate in a new host organism are called

Dizygotic twins share the same amount of genetic material as do regular siblings.

Lucy and her three friends bake an equal amount of cookies for a sale, dividing the proceeds equally amongst themselves. This is an example of _______________.

Let's say you are studying twins and observe that a particular characteristic occurs very often in both sets of monozygotic twins. We would say that this characteristic has

How does genetic transmission occur from parents to offspring?

Genetic influence has been reported for __________________.

Animals that evolved larger, more complex brains and more sophisticated mental functions became able to recognize individuals and remember past encounters with them. According to the text, this development made ______________ possible.

Alternative forms of a gene that produce different characteristics are called ___________.

Neutral variations among characteristics, which may meet future environmental demands, are known as ________________ noise.

Which of the following approaches looks for the origin of presumably universal personality traits in the adaptive demands of our species' history? The ______________ theory.

Justin has three wives, and several children with each wife. Which type of mating system describes Justin's situation?

In the Five Factor Model of personality, openness to experience is defined as _______.

Which of the following personality traits is described as having characteristics related to adventurous and risk taking behaviours?