How Populations Evolve - Biology Life | Biology+

Course

Introductory Biology

Study Pack

Set 1: An Introduction to Life on Earth

Set 2: Atoms, Molecules, and Life

Set 3: Biological Molecules

Set 4: Cell Structure and Function

Set 5: Cell Membrane Structure and Function

Set 6: Energy Flow in the Life of a Cell

Set 7: Capturing Solar Energy: Photosynthesis

Set 8: Harvesting Energy: Glycolysis and Cellular Respiration

Set 9: Cellular Reproduction

Set 10: Meiosis: the Basis of Sexual Reproduction

Set 11: Patterns of Inheritance

Set 12: Dna: the Molecule of Heredity

Set 13: Gene Expression and Regulation

Set 14: Biotechnology

Set 15: Principles of Evolution

Set 16: How Populations Evolve

Set 17: The Origin of Species

Set 18: The History of Life

Set 19: Systematics: Seeking Order Amid Diversity

Set 20: The Diversity of Prokaryotes and Viruses

Set 21: The Diversity of Protists

Set 22: The Diversity of Plants

Set 23: The Diversity of Fungi

Set 24: Animal Diversity I: Invertebrates

Set 25: Animal Diversity II: Vertebrates

Set 26: Animal Behavior

Set 27: Population Growth and Regulation

Set 28: Community Interactions

Set 29: Energy Flow and Nutrient Cycling in Ecosystems

Set 30: Earths Diverse Ecosystems

Set 31: Conserving Earths Biodiversity

Set 32: Homeostasis and the Organization of the Animal Body

Set 33: Circulation

Set 34: Respiration

Set 35: Nutrition and Digestion

Set 36: The Urinary System

Set 37: Defenses Against Disease

Set 38: Chemical Control of the Animal Body: the Endocrine System

Set 39: The Nervous System

Set 40: The Senses

Set 41: Action and Support: the Muscles and Skeleton

Set 42: Animal Reproduction

Set 43: Animal Development

Set 44: Plant Anatomy and Nutrient Transport

Set 45: Plant Reproduction and Development

Set 46: Plant Responses to the Environment

Set 16 How Populations Evolve

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Set 16 How Populations Evolve

(Multiple Choice)

Free

A young male baboon leaves the troop that he was born in and joins a small neighboring troop of small baboons. He quickly rises to become a dominant male. From an evolutionary point of view, what important process has occurred?

A) Genetic drift
B) Nonrandom mating
C) Natural selection
D) Gene flow
E) The bottleneck effect

Answer

(Multiple Choice)

Free

Which of the following is most likely to experience genetic drift?

A) A population of endangered birds that includes only five individuals
B) A species of insect that occurs all across North America
C) A population of bears that is growing by thousands of individuals each year
D) A plant species that has spread to many different habitats all around the world
E) A population of common rodents that includes millions of individuals

Answer

(Multiple Choice)

Free

A population carries two alleles for a trait in which T is dominant and t is recessive. In the Hardy- Weinberg equation, 2pq represents the

A) proportion of homozygous dominant individuals.
B) decrease in heterozygous individuals.
C) proportion of homozygous recessive individuals.
D) increase in homozygous individuals.
E) proportion of heterozygous individuals.

Answer