Exam 4: Genes, Evolution, and Behaviour

Personality theorists have identified five universal personality traits.Proponents of ____________ theory believe that these traits were useful to our ancestors.

Every year,the dubious posthumous honour of the Darwin Award is bestowed on people who "improve the human gene pool by accidentally killing themselves in really stupid ways." In 2002,for example,a man used a chainsaw to open a grenade because he wanted to make firecrackers;instead,the grenade exploded.To which of Darwin's principles are the Darwin Awards in homage?

Some people can roll their tongues into tubes and some can't.Tongue-rolling ability and inability to tongue roll are two versions of the same gene.Each version is called

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.

Scientific advances have enabled genetic researchers to manipulate or alter genes.When this technique is perfected,it could be used to prevent the development of diseases like sickle-cell anemia by keeping abnormal genes from carrying out their preprogrammed function.This scientific intervention is called a ___________________ procedure.

Haji and Seb are identical twins who went to different adoptive families as infants.When they meet for a study at age 35,researchers find that Haji's measured IQ is 116 and Seb's is 97.Since they share the same genes and intelligence is highly heritable,how is this possible? Choose the best answer.

Gillian and Illeana are in the same grade at the same school,but they participate in different extracurricular activities.Their classes are therefore part of ______________,while their extracurricular activities are part of _____________.

Dr.McCallum's class is learning about genes.He explains that not all of the information contained in our genes is used,either because the environment doesn't trigger certain tendencies or because another genetic tendency took precedence.All of a person's genetic information,regardless of whether particular tendencies are expressed,is referred to as

The Nazis' attempts to wipe out the Jewish people were rooted in the idea that Jews are somehow less fit human beings and that destroying them would remove them from the gene pool.The idea in question is called

Liam's father has blue eyes,but Liam himself has brown eyes,like his mother.As an adult,Liam marries a woman with blue eyes,and now they are expecting their first baby.Is it possible for the child to be born with blue eyes?

Except for sex cells,all cells in the human body have 46 chromosomes.At conception,the 23 chromosomes from the egg and the 23 chromosomes from the sperm combine to create a new cell that has the normal 46 chromosomes.Because this new cell repeatedly duplicates to create the other cells that form the body,all cells except sex cells have the exact same genetic information.Therefore,children always get _________ of their genetic information from their biological mothers and ________ of their genetic information from their biological fathers.

Lydia's father has straight hair and her mother has curly hair.Lydia has a gene that dictates her own hair texture from her mother and an alternative form of the same gene from her father.Each of the pair of genes is called an

Researchers have determined that bipolar disorder is more heritable than a major depressive disorder.They found that the more closely related family members are to someone with bipolar disorder,the more likely they are to have bipolar disorder themselves.The correlation is not as strong with major depressive disorders.These types of researchers are referred to as

Researchers are interested in how heritable intelligence is.Aamina agrees to participate in a study in which her IQ is compared to both her adoptive and her biological parents' IQs.She is participating in a(n)___________ study.

Peahens (female peacocks)are more attracted to peacocks with big,beautiful tails.The strength of this attraction suggests that something related to peacock plumage had

The molecular structure that is responsible for influencing physical and psychological traits in one's offspring is called a

Though schizophrenia has a strong genetic basis,there is no schizophrenia gene.The disorder must therefore be passed from parent to child via

Despite strides made by the feminist movement,women are more likely than men to leave a full-time career to take care of children.Because most modern stressors and challenges can be handled equally well by males and females,proponents of __________________ would argue that this is due not to genetics but to societal norms.

Some people can roll their tongues into tubes and some can't.If a child inherits a rolling allele from one parent and a nonrolling allele from the other,she will be able to roll her tongue.The tongue-rolling allele must therefore be

Dr.McCallum's class is learning about genes.He explains that not all of the information contained in our genes is used,either because the environment doesn't trigger certain tendencies or because another genetic tendency took precedence.The genetic information that is active in a particular person is expressed through observable characteristics.We call these characteristics