Exam 4: Genes, Evolution, and Behaviour

Both of Bob's parents have blue eyes. Bob himself also has the gene for blue eyes, yet his eyes are brown. This means that the gene for blue eyes would be considered _______.

You are observing a particular species of chimpanzee and note that a group of males have formed a coalition and are attacking another member of the group. You have only ever observed this behaviour in one other species. Which of the following would that be?

In primates, the dominant male in a social group is typically large and experienced. Dominance is also due to his ability to _______.

The _____________ is the genetic "blueprint", whereas the __________ is the expression of the genes.

Females typically make a greater investment than males in terms of reproduction.

Jeff is trying to get his newborn infant, Ian, to take a bottle of formula. His wife Mel, has gone to try to nap, and is out of Ian's line of sight. Ian recognizes the formula is not the same as his mother's milk, will have none of it, and continues to cry. Eventually, Mel cannot take the crying and gets up to nurse Ian. Although this is difficult for Jeff, the response of the baby is a(n)

Among humans, one of the most common causes of homicide is

Polyandry occurs in a species if the male is low in parental investment and the female is high.

The difference between altruism and cooperation is that in altruism

More than _______ specific gene screens are available that enable the detection of many human traits, including diseases.

The gene knockout procedure involves using certain enzymes to cut DNA into molecules to combine them with the DNA of another organism.

Buss's study on desired mate characteristics showed that the highest rated characteristic by both men and women, who were from a range of ethnic, religious, and socio-economic groups, was

Behavioural genetics is concerned with studying how heredity alone influences psychological characteristics.

Unlike the blueprints for a house, a person's genetic blueprint is not observable. Identical twins may have the same genotype but given different environmental influences, their ________ may be quite unique.

How are adoptive and twin studies used to achieve heritability estimates? What have such studies shown?

As humankind evolved physically and socially, the brain had to evolve to manage problems related to these changes. The size of the brain increased, with the most significant growth occurring in areas that manage such processes as problem solving, creativity, and language. We can therefore say that the human brain was ______________ new environmental challenges.

Research has shown that across cultures, with respect to ratings of attractiveness in women, men show ____.

Brad has blue eyes and his wife has brown eyes. Both of their children have brown eyes. Their eldest son, Mike, marries a woman with blue eyes, and they are now expecting their first baby. Is it possible for the child to be born with blue eyes?

As the degree of genetic relatedness decreases from 0.5 (e.g., siblings, parents) to 0.25 (e.g., half-siblings, aunts, uncles, nieces, nephews) to 0.125 (e.g., cousins, children of half-siblings), there is a concomitant ________________.

The "Minnesota Twin Study" assessed the personality of more than 400 pairs of twins and found that _______.