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  1. Find local businesses, view maps and get driving directions in Google Maps.

    • Google Maps

      Find local businesses, view maps and get driving directions...

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      Discover the world with Google Maps. Experience Street View,...

    • Legal Notices

      Legal Notices for Google Maps/Google Earth and Google...

    • Taj Mahal

      The Taj Mahal, India’s architectural crown jewel, was built...

  2. Calculating map distance between two genes is an indispensable tool in genetic research and molecular biology. By understanding recombination frequency and converting it into map distance, you can gain valuable insights into gene locations on a chromosome.

  3. The simplest way to calculate map distances involves counting the number of recombinants resulting from a genetic cross among progeny and dividing it by the total number of progeny observed. Subsequently, this ratio is multiplied by 100 to express the value in centimorgans (cM).

  4. A genetic map shows the map distance, in cM, that separates any two loci, and the position of these loci relative to all other mapped loci. The genetic map distance is roughly proportional to the physical distance, i.e., the amount of DNA between two loci.

  5. We can see if two genes are linked, and how tightly, by using data from genetic crosses to calculate the recombination frequency. By finding recombination frequencies for many gene pairs, we can make linkage maps that show the order and relative distances of the genes on the chromosome.

  6. We are now ready to determine the map distances between the middle gene and each of the two flanking genes. This step should be familiar from solving problems involving two genes. For each calculation, we will look at two genes at a time, and ignore the third one.

  7. You can calculate the length of a path, running route, fence, border, or the perimeter of any object that appears on a google map. The distance calculator will then display a measurement of the length in feet, meters, miles and kilometers.