View Full Document. ï¬ 1  Primers determine the specificity of the PCR reaction. ï¬ The distance between the primer binding sites will determine the size of the PCR product. 2  T m ï¬ For short (14â20 bp) oligomers: ï¬ T m = 4Â° (GC) + 2Â° (AT)
Estrus, or heat, is the period in which the doe will stand and allow the buck to breed her. This phase of the reproductive cycle may last between 12 to 36 hours. The period from one heat cycle to the next is referred to as the estrous cycle. In goats, the estrous cycle occurs every 18 to 24 days, or 21 days on average.
Definition of rut 1: a periodic and often annually recurring state of certain male animals (such as deer or elk) during which behavior associated with the urge to breed is displayed 2: the period of time during which rut occurs : breeding season