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Captive Breeding Quiz
45 Questions
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Captive Breeding Quiz

Created by
@AutonomousImagery

Questions and Answers

What is one of the main advantages of captive breeding?

  • Promotes isolation of species
  • Prevents extinction (correct)
  • Limits biodiversity
  • Increases mortality rates

    • Which of the following is a disadvantage associated with captive breeding?

  • Diseases spread easily (correct)
  • Improves survival skills in the wild
  • Fosters natural habitats
  • Encourages genetic diversity

    • How does captive breeding potentially impact the genetic diversity of a species?

  • Increases interspecies mating
  • Reduces gene pool (correct)
  • Enhances genetic variability
  • Promotes hybrid vigor

    • What benefit does captive breeding provide in terms of social awareness?

    <p>Acts as a public attraction</p> Signup and view all the answers

    What is a possible consequence of captive breeding regarding survival skills of some species?

    <p>Loss of knowledge to survive in the wild</p> Signup and view all the answers

    What is the probability of an offspring being homozygous recessive (aa) when two heterozygous parents (Aa) are crossed?

    <p>25%</p> Signup and view all the answers

    Which of the following represents a homozygous dominant pairing?

    <p>AA</p> Signup and view all the answers

    If a homozygous recessive parent (aa) is crossed with a homozygous dominant parent (AA), what fraction of the offspring will be heterozygous?

    <p>100%</p> Signup and view all the answers

    What is the dominant chance percentage when an AA parent is crossed with an aa parent?

    <p>100%</p> Signup and view all the answers

    In a cross between two Aa parents, which genotype will appear most frequently among the offspring?

    <p>Aa</p> Signup and view all the answers

    What is the primary purpose of gene banks and seed banks?

    <p>To store genetic material for rebuilding populations of rare species</p> Signup and view all the answers

    Which of the following is NOT typically stored in gene and seed banks?

    <p>Fossils</p> Signup and view all the answers

    What kind of reproductive material can be stored in gene banks?

    <p>Stem cells and reproductive organs</p> Signup and view all the answers

    Which of the following best describes the types of genetic material that gene banks focus on?

    <p>Both animal and plant genetic materials, including sperm and eggs</p> Signup and view all the answers

    Which of the following components plays a role in conservation efforts within gene banks?

    <p>Blood and tissue samples</p> Signup and view all the answers

    What does biodiversity specifically measure?

    <p>The number of different species in an area.</p> Signup and view all the answers

    What role do genes play in the inheritance of traits?

    <p>Genes are inherited from biological parents and code for traits.</p> Signup and view all the answers

    How are DNA and genes related?

    <p>Genes are small sections of DNA that code traits.</p> Signup and view all the answers

    Which statement about DNA is true?

    <p>DNA is inherited through genes from biological parents.</p> Signup and view all the answers

    What is the primary function of genes within DNA?

    <p>To code for specific traits.</p> Signup and view all the answers

    What structures contain genetic material in a cell?

    <p>Chromosomes</p> Signup and view all the answers

    During fertilization, what happens to the genetic material from the sperm and egg?

    <p>Chromosomes pair up with an equal number from each</p> Signup and view all the answers

    What are the base pairs found in DNA?

    <p>A+T and C+G</p> Signup and view all the answers

    What is the primary consequence for a species that fails to adapt to its environment?

    <p>It will face extinction.</p> Signup and view all the answers

    What shape describes the structure of DNA?

    <p>Double helix</p> Signup and view all the answers

    Which of the following is NOT listed as a reason for species extinction?

    <p>Overpopulation</p> Signup and view all the answers

    Which component is NOT found within a chromosome?

    <p>Ribosomal RNA</p> Signup and view all the answers

    What is one proposed method of protecting species from extinction?

    <p>Stop deforestation.</p> Signup and view all the answers

    Which of the following factors can directly lead to habitat destruction?

    <p>Urban expansion and agriculture.</p> Signup and view all the answers

    What role does further research play in species conservation?

    <p>It informs methods for preventing extinction.</p> Signup and view all the answers

    What is the primary reason that individuals within a species exhibit natural variation?

    <p>Differences in their genes</p> Signup and view all the answers

    What is the outcome for individuals with better characteristics in the context of natural selection?

    <p>They are more likely to survive</p> Signup and view all the answers

    What is the process by which advantageous traits are passed on to the next generation?

    <p>Natural selection</p> Signup and view all the answers

    How does an increase in population with advantageous genes affect the species as a whole?

    <p>It enhances survival probabilities</p> Signup and view all the answers

    Which factor is not considered part of natural selection principles?

    <p>Random mating within the population</p> Signup and view all the answers

    What describes an allele?

    <p>An alternate version of the same gene</p> Signup and view all the answers

    Which of the following is true about dominant alleles?

    <p>They can mask the effect of recessive alleles</p> Signup and view all the answers

    In the context of genetics, which scenario indicates a recessive trait?

    <p>Requires two copies of the same allele to be present</p> Signup and view all the answers

    What is the genotype representation for a homozygous dominant individual?

    <p>AA</p> Signup and view all the answers

    How many copies of a recessive allele must be present for its trait to be expressed?

    <p>Two</p> Signup and view all the answers

    What are the structures that DNA is organized into, which contain genetic information?

    <p>Chromosomes</p> Signup and view all the answers

    How many pairs of chromosomes do humans have?

    <p>46 pairs</p> Signup and view all the answers

    What term describes the sections of DNA within chromosomes that hold information about traits?

    <p>Genes</p> Signup and view all the answers

    What is the primary way in which offspring inherit characteristics from their parents?

    <p>Half from each parent</p> Signup and view all the answers

    What is the relationship between chromosomes and traits?

    <p>Chromosomes contain genes that influence traits</p> Signup and view all the answers

    Study Notes

    Captive Breeding

    • Maintains plant or animal populations in controlled environments.
    • Advantages:
      • Promotes healthy population dynamics.
      • Attracts public interest, aiding conservation efforts.
      • Prevents species extinction and preserves biodiversity.
      • Facilitates the introduction of mates for genetic diversity.
    • Disadvantages:
      • Diseases can spread rapidly among confined species.
      • Genomic diversity can diminish, leading to a reduced gene pool.
      • May compromise natural survival skills in wild settings.

    Punnett Squares

    • A tool used to predict potential offspring traits and genotypes.
    • Illustrates how allele combinations from parents influence characteristics.
    • Homozygous alleles: Identical alleles from parents result in specific offspring genotypes.
    • Recessive trait probability is 25%, while dominant trait probability is 75%.

    Gene Banks and Seed Banks

    • Function to store genetic resources critical for restoring endangered species.
    • Types of stored genetic material include:
      • Seeds
      • Embryos
      • Stem cells
      • Sperm and eggs
      • Reproductive organs
      • Blood and various cells.

    Key Terms

    • Biodiversity: Diversity of species within a specific ecosystem or area.
    • DNA: Genetic information inherited from biological parents.
    • Genes: Segments of DNA that encode specific traits.

    Extinction

    • Occurs when a species fails to adapt, leading to competition loss against genetically superior organisms.
    • Major causes of extinction include:
      • Climate change
      • Natural disasters
      • Habitat destruction
      • Hunting
      • Diseases.
    • Conservation strategies include protecting ecosystems, halting deforestation, safeguarding species from hunting, and conducting further research.

    Genetic Material

    • Comprised of various levels of cellular organization:
      • Big Cell: Consists of a nucleus.
        • Chromosomes: Structures within the nucleus composed of DNA.
          • DNA: Double helix structure made up of nucleotides (A+T, C+G).
    • Genetic material from sperm and egg combines during fertilization, forming paired chromosomes.

    Natural Selection

    • Within species, individuals display variations due to genetic differences.
    • Favorable traits enhance survival and reproductive success, leading to greater prevalence in future generations.
    • Genes carry characteristics, with alleles as different forms of the same gene.
      • Dominant alleles require only one copy (A) for expression.
      • Recessive alleles need two copies (a) to manifest.

    Inheritance

    • Traits are inherited from biological parents through DNA, organized into chromosomes (23 pairs in humans).
    • Each parent contributes half of their genetic material.
    • Genes convey information for traits, structured in segments on chromosomes.

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    Description

    Test your knowledge on the advantages and disadvantages of captive breeding. This quiz explores the essential aspects of maintaining plant and animal populations in controlled environments and their implications for biodiversity. Understand how captive breeding can aid conservation efforts while also recognizing the potential drawbacks.

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