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Choose true or false for the following statements about genétic mapping.
  1. A genetic map allows geneticists to understañd the overall complexity and genetic organization of a particular species.

Ask by Daniels Weaver. in the United States
Mar 11,2025

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Tutor-Verified Answer

Answer

  1. True
  2. True
  3. True
  4. True
  5. False
  6. True

Solution

Let’s evaluate each statement about genetic mapping:
  1. A genetic map allows geneticists to understand the overall complexity and genetic organization of a particular species.
    True - Genetic maps provide insights into the arrangement of genes and their relationships, helping to understand the genetic structure of a species.
  2. Knowing the locus of a gene within a genetic map helps molecular geneticists clone the gene.
    True - Identifying the specific location (locus) of a gene is crucial for cloning it, as it allows researchers to target the right DNA segment.
  3. Genetic maps can be used to improve our understanding of the evolutionary relationships among species.
    True - By comparing genetic maps across species, scientists can infer evolutionary relationships and common ancestry.
  4. Genetic maps can be used to diagnose and perhaps someday treat inherited human diseases.
    True - Genetic mapping can identify genes associated with diseases, aiding in diagnosis and potential treatments.
  5. Genetic counselors can use genetic maps to determine if an individual will express a particular gene.
    False - While genetic maps can indicate the presence of genes, they do not determine whether a gene will be expressed, as expression can be influenced by various factors, including environmental conditions and regulatory mechanisms.
  6. Genetic maps provide plant and animal breeders with helpful information for improving agriculturally important strains through selective breeding programs.
    True - Genetic maps are valuable tools for breeders to select desirable traits and improve strains through informed breeding decisions.
In summary:
  1. True
  2. True
  3. True
  4. True
  5. False
  6. True

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Beyond the Answer

Genetic mapping has a rich history that dates back to the early 20th century when scientists began exploring the role of chromosomes in heredity. One of the first genetic maps was developed by Thomas Hunt Morgan using fruit flies, which demonstrated how genes are located on chromosomes and how they could be inherited. This laid the groundwork for modern genetics and our understanding of gene linkage and recombination.
When it comes to real-world applications, genetic mapping is a powerhouse tool in fields like agriculture, medicine, and conservation. For example, crop breeders utilize genetic maps to identify and select for traits like disease resistance or yield improvements, ensuring food security. In medicine, it aids in pinpointing genetic disorders, allowing for advances in gene therapy and targeted treatments, moving us closer to personalized healthcare solutions!

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