Explain how weather maps show the movement of air masses and changes in weather using weather fronts.

On a weather map, a cold front is usually drawn using a solid blue line with triangles pointing in the direction of the warm air that will be replaced. Cold fronts typically move from northwest to southeast. A cold front can bring cold temperatures, torrential rains and high wind speeds.

Explanation:

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.