Is the trait being studied in the predigree ressecive or dominant

it depends on what they use to code it.. the graphs usually use a filled in dot and if it is then it most likely going to be dominant and then it will usually carry out a half filled in dot throughout the chart meaning it would be dominant.

Brainliest please?

the answer would be knowledge about cars!

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.