Pre-Parturient Mare Behavior. Mares will generally foal after an 11-month gestation, but this is highly variable. Studies have shown a range of gestation from 315 to 387 days, with an average of about 341 days.
Punnett squares are most commonly used to examine genotype probabilities from one genetic locus at a time. They can be used to look at more than one locus at time, but some find the resulting diagrams complicated and difficult to interpret.
The use of the Rafter Square is based on two simple building measurements: (1) the rafter run and (2) the rafter rise. These can be obtained from building blueprints, drawings, or actual measurements. The tables included in this reference guide are based on these two simple measurements. (See figure 3.) Rafter Run: The horizontal