Acarrier of a genetic disorder who does not show symptoms is most likely to be to transmit it to offspring. a. heterozygous for the trait and able b. heterozygous for the trait and unable c. homozygous for the trait and able d. homozygous for the trait and unable

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

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.