During fertilization, a zygote inherits DNA from both the sperm and the egg, but the mitochondria and its associated DNA a zygote contains are contributed solely by the
egg, not the sperm. Additionally, during the process of fertilization, the expected
outcome is that each chromosome from the egg has a homologous partner found in
the sperm; with the exception of the Y chromosome in male zygotes. Explain the
differences in patterns of inheritance between the genes in the nuclear DNA, the
mitochondrial DNA and the Y chromosome.

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.