Which genotype belongs to an offspring that is homozygous recessive for both traits? what is the probability of that genotype?

answer; the above answer to the above statement is (true)

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.