Cooing and babbling are early stages of speech development. As babies get older (often around 9 months), they begin to string sounds together, incorporate the different tones of speech, and say words like mama and dada (without really understanding what those words mean).
The map distance between two genes, measured in centimorgans or map units, equals the percentage recombination frequency between the two genes--the likelihood of offspring with copies of those genes on the same chromosome that come from different parents.ave. dna image by Allyson Ricketts from Fotolia.com. The concept of map distance in a genotype refers to where genes are located on a chromosome but does not refer to physical distance; rather, map distance refers to the tendency for a crossover to occur between genes.
Enter a city, a zipcode, or an address in both the Distance From and the Distance To address inputs. Click Calculate Distance, and the tool will place a marker at each of the two addresses on the map along with a line between them. The distance between them will appear just above the map in both miles and kilometers. The tool is useful for estimating the mileage of a flight, drive, or walk.