PSYCH 1: Quiz 4 (Chapter 3)

Put the following in order from smallest to largest: ( _ ) A. A single chromosome ( _ ) B. A single gene ( _ ) C. A single DNA molecule ( _ )D. A single nucleus

( 3 ) A. A single chromosome ( 2 ) B. A single gene ( 1 ) C. A single DNA molecule ( 4 )D. A single nucleus

Which of the following is likely to have a stronger genetic component? A. Being shy B. Being popular

A. Being shy

Based on what was discussed in lecture about genetics vs. environment, which of the following statements is the most correct? A. Variability in singing ability is likely to be strongly genetic because it is a relatively less complex behavior involving fewer interactions with the environment. B. Variability in basketball ability is likely to be strongly genetic because it is a relatively more complex behavior involving more interactions with the environment.

A. Variability in singing ability is likely to be strongly genetic because it is a relatively less complex behavior involving fewer interactions with the environment.

One reason to be cautious about attributing all the personality similarities of separated identical twins to genetic factors is that: A. adoption agencies tend to place separated twins in similar homes. B. home environments have less impact on personality than does peer influence. C. some twins develop from a single fertilized egg that splits in two. D. adopted children's personalities are highly similar to those of their adoptive parents.

A. adoption agencies tend to place separated twins in similar homes.

The scientific field that attempts to identify and understand links between genetics and behavior is A. behavioral genetics B. genetic engineering C. natural selection D. evolutionary psychology

A. behavioral genetics

If we say that 25% of the variability in mathematics skill can be attributed to genes, then that means that the _____________ of mathematics skill is 25% A. heritability B. innateness C. genome analysis D. DNA

A. heritability

Adopted children are especially likely to have similar ____________ if raised in the same home. A. values and attitudes B. gene complexes C. temperaments D. personality traits

A. values and attitudes

Studying identical twins raised in the same household allows us to study which of the twins' behaviors are due to their genetic similarity. A. True B. False

B. False

What is an argument against the idea that promiscuity is an ideal way to pass one's genes onto successive generations? A. The quality of the selected mate tends to decrease with increased promiscuity. B. Parental care suffers when a parent has too many children. C. Fertility rates typically decrease when sexual activity goes beyond a threshold level. D. Increased sexual activity introduces a variety of fatal infections to the individual.

B. Parental care suffers when a parent has too many children.

Dominant alleles determine a phenotype when an individual is _______ for that particular gene. A. neither homozygous or heterozygous B. either homozygous nor heterozygous C. only heterozygous D. only homozygous

B. either homozygous nor heterozygous

The effects of heredity on behavior depend on a person's home environment. This highlights the importance of: A. gene complexes B. gene-environemnt interactions C. the double helix D. collectivism

B. gene-environemnt interactions

The process by which survival and reproduction pressures act to change the frequency of alleles in subsequent generations is referred to as ___________. A. genetic drift B. natural selection C. behavior genetics D. epigenetics

B. natural selection

In class, we discussed an experiment that looked at the effect of learning and exercise on the structure of rat brains. What was the conclusion of that study? A. An enriched learning environment was necessary both for making more neural connections and for increasing blood flow to the brain and increasing its nutritional health. B. Exercise was necessary both for making more neural connections and for increasing blood flow to the brain and increasing its nutritional health. C. An enriched learning environment led to the creation of more neural connections, and exercise was necessary for increasing blood flow to the brain and increasing its nutritional health. D. The brain's structure is determined purely by your genes, and neither learning nor exercise had an effect on the brain's structure

C. An enriched learning environment led to the creation of more neural connections, and exercise was necessary for increasing blood flow to the brain and increasing its nutritional health.

Which of the following would be the least effective way of doing human behavioral genetics research? A. Genomic Analyses B. Measuring Heritability C. Counting Chromosomes D. Twin Studies

C. Counting Chromosomes

Which example best illustrates the concept of epigenetics? A. Fareed and Asha are fraternal twins; they are often mistaken for identical twins. B. Joe and Elaine have brown eyes; their youngest daughter has blue eyes. C. Josh and Jason are identical twins; Josh is two inches taller than Jason. D. Toby has Huntington's disease; his son has a 50% chance of inheriting the disease.

C. Josh and Jason are identical twins; Josh is two inches taller than Jason.

Evolutionary psychologists suggest that sacrificing yourself for others is much more likely when the "others" are __________. A. members of the same sex B. members of the opposite sex C. genetically related relatives D. genetically diverse individuals

C. genetically related relatives

Compared with identical twins, fraternal twins are: A. more likely to be the same sex and more likely to be similar in extraversion. B. more likely to be the same sex and less likely to be similar in extraversion. C. less likely to be the same sex and less likely to be similar in extraversion. D. less likely to be the same sex and equally likely to be similar in extraversion.

C. less likely to be the same sex and less likely to be similar in extraversion.

Genes provide codes for the production of A. biological traits like brain size B. physical traits like height and weight C. proteins inside each cell D. behaviors like mathematical and reading ability

C. proteins inside each cell

From what you learned this week in discussion section, which of the following statements is the most accurate: A. Dyslexia is a genetic disorder. B. Dyslexia is a product of the environment you are raised in and how you are taught to read. C. Dyslexia is a problem that is 30% genetic, and 70% environmental. D. Dyslexia is a problem that occurs when specific readings processes are disrupted, and how it manifests itself is highly influenced by your environment.

D. Dyslexia is a problem that occurs when specific readings processes are disrupted, and how it manifests itself is highly influenced by your environment.

Sandra rushes over to her friend Denise's house because Denise is distraught over a recent breakup with her boyfriend. Even though Sandra has a term paper due the next day, she wants to console Denise because she knows Denise would do the same for her. This is an example of ___________. A. atypical selflessness B. anticipatory cooperation C. mutual kinship D. reciprocal altruism

D. reciprocal altruism