In human cells, this organelle houses 23 pairs of chromosomes which contain genes made from dna; in each chromosome pair, one is inherited from mom and the other is from dad.

Nucleus

Explanation:

Humans are eukaryotic organisms. Their cells have a well-defined nucleus in which the genetic material is present in the form of chromosomes. Chromosomes have genes arranged in a linear manner. Genes represent the stretch of DNA that code for a specific protein. Being diploid organisms, humans have two complete sets of chromosomes. Therefore, each chromosome is present in pairs. These pairs are called homologous chromosomes. One chromosome of a pair comes from an egg cell and is called the maternal chromosome. The other chromosome is contributed by sperm and is called a paternal chromosome.

answer; /// i believe the correct answer is (thrombocytopenia); (a)

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.