In addition to a and a, the "agouti" gene has a third allele, ay . here is some information about the inheritance of the ay allele. the ay allele is dominant to both a and a. the homozygous genotype (ayay ) results in lethality before birth. the heterozygous genotypes (aya or aya) result in yellow fur color, regardless of which alleles are present for the b/b gene. (this effect exhibited by the ay allele is known as epistasis--when the expression of one gene masks the expression of a second gene.)

answer biotechnology;

the limb fractures are among the most common fractures. open fractures are comparatively more dangerous. the injury patterns are dependent on many factors, such as the age of the person, and mechanism of the injury. the closed fractures of the limbs if left untreated may lead to a significant amount of the blood loss, which may be life-threatening for the person. approximately 1000-1500 ml of blood is lost in the close fracture of the femur, and 500-1000 ml of blood is lost in the closed fracture of lower part of the limbs.