What is the main cause of genetic variation between identical twins?   A. genetic drift   B. the movement of alleles through sexual reproduction   C. mutations generated in the previous generation   D. geographic variation within a population   E. environmental effects

Natural selection can edit the nucleotide sequence of an allele inside an individual. Question 8 a. False b. True

What branch of biology deals with the genetic makeup of populations? A. cytology B. ecology C. Mendelian genetics D. population genetics E. population ecology

Read in the Introduction about the three kinds of natural selection: directional, stabilizing, and disruptive. In Procedure 9.1, the phenotype we are considering is size. Which one of these types of natural selection do you expect to see if your answer to question 1 above is correct? Explain.

Give typed explanation not written How can we measure gene flow between discrete populations? a. By estimating the proportion of individuals in the populations that are immigrants. b. By estimating the migration variance (σm2). c. By counting the number of offspring each individual has. d. By counting the number of connected populations.

Antibiotics are commonly used to combat bacterial and fungal infections. During the past several decades, however, antibioticresistant strains of microorganisms have become alarmingly prevalent. This has undermined the effectiveness of antibiotics in treating many types of infectious disease. Discuss how the following processes that alter allele frequencies may have contributed to the emergence of antibiotic-resistant strains: A. Random mutation B. Genetic drift C. Natural selection

The change in genetic information in a species over time is?

36

11)

The Hardy-Weinberg equation Group of answer choices is the way we determine the length of a gene on a chromosome measures the small, incremental stages of changes of the earth over deep time measures the amount of genetic recombination that occurs during meiosis helps us determine the extent to which a trait in a population is evolving