Evolution and Genetics Quiz

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Questions and Answers

What term describes the genetic condition present in the Fugate family of Troublesome Creek, KY?

  • Sickle cell anemia
  • Methemoglobinemia (correct)
  • Hemophilia
  • Cystic fibrosis

What phenomenon is illustrated by the Fugate family's genetic condition being passed on in an isolated population?

  • Gene flow
  • Genetic drift (correct)
  • Hybrid vigor
  • Natural selection

What term describes inherited traits that enhance survival and reproduction in an environment?

  • Evolution
  • Adaptations (correct)
  • Natural selection
  • Environmental factors

In the context of evolution, what does a common ancestor imply about two organisms?

<p>They are more closely related the more recently they shared a common ancestor. (B)</p> Signup and view all the answers

What is the term for the permanent loss of a species, such as the Tasmanian Tiger?

<p>Extinction (C)</p> Signup and view all the answers

What does the theory of evolution imply about traits that contribute to survival?

<p>They are inherited and increase fitness in a specific environment. (D)</p> Signup and view all the answers

Which concept explains how a small, isolated population retains unique genetic traits over generations?

<p>Founder’s effect (A)</p> Signup and view all the answers

How does Darwin's theory explain the relationship between species?

<p>It claims that related species share a common ancestor. (C)</p> Signup and view all the answers

Which of the following best describes the role of genetic drift in isolated populations?

<p>Reducing the gene pool (D)</p> Signup and view all the answers

What is the significance of adaptations in organisms according to evolutionary biology?

<p>They allow organisms to thrive in their habitats. (B)</p> Signup and view all the answers

What term describes species that mate based on the timing of daylight changes?

<p>Temporal (A)</p> Signup and view all the answers

What kind of structures are forelimbs of mammals that share similar bone structures despite serving different functions?

<p>Homologous structures (D)</p> Signup and view all the answers

What type of isolation occurs when species have differences in their mating behaviors?

<p>Behavioral isolation (A)</p> Signup and view all the answers

Which of the following structures may have lost their original function over time?

<p>Vestigial organs (D)</p> Signup and view all the answers

Which term refers to when different species evolve similar traits independently?

<p>Convergent evolution (D)</p> Signup and view all the answers

Which term describes changes in DNA that can result in new alleles?

<p>Mutations (A)</p> Signup and view all the answers

What term is used for structures that are similar due to shared ancestry?

<p>Homologous structures (B)</p> Signup and view all the answers

Which type of reproductive isolation occurs when species breed at different times?

<p>Temporal isolation (D)</p> Signup and view all the answers

What is the term for features that have lost their original function through evolution?

<p>Vestigial organs (B)</p> Signup and view all the answers

Which of the following concepts refers to different species developing similar traits due to similar environmental pressures?

<p>Convergent evolution (C)</p> Signup and view all the answers

What can random changes in DNA lead to within a gene pool?

<p>Increased genetic variation (C)</p> Signup and view all the answers

What type of reproductive isolation occurs when species occupy different habitats?

<p>Habitat isolation (B)</p> Signup and view all the answers

Which of the following processes is primarily driven by mutations in DNA?

<p>Evolution (A)</p> Signup and view all the answers

Which example illustrates temporal isolation between two species?

<p>One species reproduces during the day, and another at night (D)</p> Signup and view all the answers

What best describes analogous structures in different species?

<p>Similar functions arising independently (D)</p> Signup and view all the answers

Which of the following is a category of streams?

<p>habitat (D)</p> Signup and view all the answers

What is the branch of biology that focuses on naming and classifying organisms?

<p>Taxonomy (B)</p> Signup and view all the answers

Which term refers to the interaction of organisms with their environment and each other?

<p>Ecology (B)</p> Signup and view all the answers

What is the primary focus of Botany as a field of study?

<p>Plant life (B)</p> Signup and view all the answers

Which of the following branches of biology deals with the heredity and variation of organisms?

<p>Genetics (D)</p> Signup and view all the answers

What is the survival rate of offspring for Swiss starlings producing fewer than 4 or more than 5 eggs in a clutch?

<p>Lower than average (D)</p> Signup and view all the answers

Which type of selection would favor Swiss starlings that produce 4 to 5 eggs in a clutch?

<p>Stabilizing selection (A)</p> Signup and view all the answers

What is the typical number of eggs found in a clutch of Swiss starlings?

<p>4 to 5 eggs (A)</p> Signup and view all the answers

If a study indicates a lower survival rate for starlings producing less than 4 eggs, this suggests what about their reproductive strategy?

<p>They are subject to environmental constraints. (D)</p> Signup and view all the answers

Which term describes when extreme phenotypes are selected against in a population?

<p>Stabilizing selection (D)</p> Signup and view all the answers

What behavior does the male of one species exhibit in the presence of predators?

<p>They sing only when predators are absent. (A)</p> Signup and view all the answers

What type of evidence is considered most compelling for supporting the theory of evolution?

<p>DNA evidence that shows genetic similarities. (B)</p> Signup and view all the answers

Which of the following best describes a behavioral adaptation related to predation?

<p>Vocalizations used as warnings among species. (B)</p> Signup and view all the answers

What do we call the phenomenon when two species exhibit different mating behaviors?

<p>Reproductive isolation. (A)</p> Signup and view all the answers

What term best describes traits that are inherited due to their advantage in survival and reproduction?

<p>Adaptive traits. (B)</p> Signup and view all the answers

What provides the most recent evidence for evolution?

<p>DNA evidence (D)</p> Signup and view all the answers

What does it indicate if human skin color is controlled by more than one gene?

<p>Polygenic inheritance (D)</p> Signup and view all the answers

Which term describes the genetic variance seen in a small, isolated population over generations?

<p>Genetic drift (B)</p> Signup and view all the answers

What is likely the result of traits contributing to human success in an environment?

<p>Adaptation (A)</p> Signup and view all the answers

If two species develop similar traits due to similar environmental challenges, what is this called?

<p>Convergent evolution (A)</p> Signup and view all the answers

What type of isolation occurs when one species lives in tree holes while another species lives in streams?

<p>habitat (D)</p> Signup and view all the answers

What is the main focus of the branch of biology that deals with naming and classifying organisms?

<p>Taxonomy (A)</p> Signup and view all the answers

What term describes the process through which organisms are categorized based on their evolutionary relationships?

<p>Systematics (B)</p> Signup and view all the answers

In the context of biological classification, what is the correct order of categories from broadest to most specific?

<p>Kingdom, Phylum, Class, Order, Family, Genus, Species (C)</p> Signup and view all the answers

Which of the following statements about taxonomy is incorrect?

<p>Taxonomy is unrelated to evolutionary biology. (B)</p> Signup and view all the answers

Flashcards

Inherited traits increasing survival

Adaptations are inherited traits that help an organism survive and reproduce.

Closely related organisms

Closely related organisms recently shared a common ancestor.

Adaptations

Inherited traits that help organisms survive and reproduce.

Common ancestor

An ancestor shared by two different organisms.

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Closely related organisms

Organisms with a shared recent ancestor.

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Founder's Effect

A type of genetic drift where a small group of individuals establishes a new population, carrying a limited set of genes.

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Genetic Drift

Random fluctuations in allele frequencies within a population, often affecting small populations.

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Extinction

The complete disappearance of a species.

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Tasmanian Tiger

Example of a species that has become extinct.

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Methemoglobinemia

A rare genetic condition that affects red blood cells.

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Temporal Isolation

Different species breed at different times of the year, preventing mating.

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Homologous Structures

Similar structures in different species, suggesting a common ancestor, even if function differs.

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Reproductive Isolation Mechanisms

Mechanisms that prevent interbreeding between species.

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Behavioral Isolation

Isolation caused by differences in courtship rituals or mating behaviors that prevent interspecies mating.

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Gametic Isolation

Reproductive isolation caused by incompatibility between the gametes (sperm and egg) of different species.

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Vestigial Organs

Structures in an organism that have lost their original function over time due to evolution.

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Analogous Structures

Similar anatomical features in different species that have evolved independently to serve similar functions, but have a different evolutionary origin.

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Mutation

Any random change in the DNA sequence. This can lead to new alleles and genetic variation within a species.

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Genetic variation

The differences in genes within a population, leading to unique traits.

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Alleles

Different versions of a gene, leading to variations in traits.

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Reproductive Isolation

The inability of two species to interbreed and produce viable offspring.

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Habitat Isolation

Two species cannot interbreed because they live in different habitats, even if they're in the same geographic area.

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Taxonomy

The branch of biology that names and classifies organisms based on shared characteristics.

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What is a key characteristic of organisms in the same taxonomic group?

Organisms in the same taxonomic group share a recent common ancestor and thus have similar characteristics due to shared ancestry.

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What is the basis for classifying organisms?

Organisms are classified based on their evolutionary relationships, which are revealed through shared characteristics and genetic similarities.

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Stabilizing Selection

A type of natural selection where individuals with average traits have the highest fitness, leading to a decrease in variation around the average.

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Natural Selection

The process by which organisms better adapted to their environment tend to survive and reproduce more successfully.

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Fitness

An organism's ability to survive and reproduce in a particular environment.

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Clutch Size

The number of eggs or offspring produced by an organism in a single reproductive event.

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Survival Rate

The proportion of offspring that survive to a certain age or stage.

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Habitat Streams

A category of streams characterized by the specific physical and biological environments they inhabit.

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What is the name of the branch of biology that classifies organisms?

Taxonomy is the branch of biology that names and classifies organisms based on their shared characteristics.

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What is the role of taxonomy in the study of life?

Taxonomy helps organize and understand the diversity of life by classifying organisms based on shared traits, aiding in communication and scientific research.

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What is the difference between Taxonomy and Ecology?

While Taxonomy focuses on classifying organisms based on their characteristics, Ecology studies the interactions of organisms with their environment.

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DNA Evidence

The most recent, quantifiable, and compelling evidence for evolution.

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What's the most recent, quantifiable, and compelling evidence for evolution?

DNA evidence.

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DNA Evidence & Evolution

DNA analysis provides the most current, quantifiable, and robust evidence supporting the theory of evolution.

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Multiple Genes & Traits

When a trait like human skin color exhibits a wide range of variations, it indicates that multiple genes, not just one, are involved in determining that trait.

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What is Polygenic Inheritance?

Polygenic inheritance describes the situation when multiple genes contribute to a single trait, resulting in a continuous spectrum of variations.

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Codominance vs. Incomplete Dominance

Codominance occurs when both alleles of a gene are expressed equally, while incomplete dominance results in a blended phenotype.

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