How is linkage used to make gene maps?

Step one: cross two animals that have dissimilar and simply documented phenotypes. Evidence the phenotypes in all the progeny.

Step two: do a DNA test that ways which sets of DNA indicators move jointly in the several descendants.

Step three: associate the DNA map with the phenotypes, and you'll be capable to shape a map that displays which phenotypes communicate to which chromosomal positions.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.