A. Genetic drift refers to a. change in the way the body functions as a result of stressors. b. changes in the DNA sequence, particularly in sex cells. c. random changes or accidents that reduce genetic variation in a population. B. All human cultures a. can be correlated with "races" in the past. b. are unchanging and eternal. c. can be ranked as "primitive" or "advanced". d. are integrated and complex. d. exchange of genes when outsiders migrate into an area.

A. When Dr. Linda Fedigan conducted her studies on menopause, she collected data from the following sources: a. data collected on seven primate species. b. data collected on her studies of macaques. c. all of the above d. ethnographic data from traditional societies. B. several problems that may arise when geneticists undertake studies on indigenous persons without understanding their culture. Which of the following is one of these problems? a. People had samples taken without their knowledge, during surgeries. b. Samples were later used for other studies that were not authorized. c. Samples are being used to produce cures, but no money is given back. d. All of the above are true

Which of the following is Not required for Natural Selection to occur with a biological population? A. Not all offspring survive to reproduce B.Individuals is the population with some phenotypic variants must have higher fitness on average C. Individuals with one phenotype must always have more offspring than individuals with other phenotypes D. The phenotypical variation within a population of organisms must be heritable E. Variation in the phenotypes of organisms within a population

Which of the following is true regarding vestigial traits?   A. Vestigial traits are evidence for change over time   B. Vestigial traits are evidence for common ancestry   C. Vestigial traits indicate that not evolution does not perfect organisms   A and B   A, B, and C

Natural selection can act on both ________, which is the probability of survival, and ________, which is the number of offspring produced. a: epistasis; epigenetics b: directional selection, frequency dependent selection c: livelihood; income d: viability; fecundity

Which of the following is NOT an appropriate use of DNA Sequencing data.       a.  Comparing the genomes of endangered animals to protect them.       b.  Comparing the genomes of dog breeds to understand their evolution.       c.   Comparing the genomes of healthy and sick populations to understand genomic basis of disease.       d.   Comparing an individual's genome to other individuals in a population to determine their health risk or to eliminate them as suspects in a crime.       e.   Comparing populations based on socially constructed groupings to assert a hierarchy among those groups.

Mutations cause variations among individuals. If these variations provide an advantage to individuals, then the resulting traits are known as adaptations. Which of the following statements about adaptations is incorrect?  A. They are structural or physiological in nature.   B. They modify the behaviour of organisms.   C. They provide a selective advantage in any environment.   D .They increase reproductive success of organisms.

The main idea behind Darwin’s theory of natural selection was Group of answer choices a. Competition for space between the individuals will limit a population b. Individuals pass on acquired characteristics to their offspring c. Individuals with advantageous adaptations are more likely to out-produce those lacking that adaptation d. Populations adapt over time

Which of the following is NOT a correct statement regarding the neutral-mutation explanation for the high levels of genetic variation? A. Most genetic variation observed is adaptively neutral. B. Natural selection plays a lesser role in maintaining genetic variation. C. When natural selection occurs it leads to a decrease in genetic variation. D. Genetic variation is maintained mainly via the random effects of genetic drift.

Lamarck's theory of inheritance of acquired characteristics did NOT include which of the following ideas? Select one: a. The environment plays a role in selecting favourable characteristics b. Physical characteristics acquired during a lifetime can not be passed to offspring c. Organisms can change during their own lifetime d. Physical activities can change organisms O O O