What characteristic would tissue samples from the heart and stomach of a grasshopper have in common?

The correct choice highlights that tissue samples from the heart and stomach of a grasshopper would have similar DNA because all the cells in an organism come from the same genetic material. In a grasshopper, as in other multicellular organisms, every cell in the body carries the same DNA, which contains the instructions necessary for the development, functioning, and regulation of the organism's cells and tissues.

Even though the heart and stomach have different functions and structures, the underlying genetic code remains unchanged across the different types of tissues. This commonality in DNA is crucial for the growth, repair, and maintaining the overall functionality of the organism, as it allows for the coordination of various cellular processes.

Variations in cellular structures or functions exist because different genes may be expressed in different tissues, leading to the specialization of cells, but the genetic material—DNA—remains consistent throughout the organism. Thus, the comparison of DNA across different tissues demonstrates a foundational principle of biology: all cells share the same genetic blueprint, even if they perform distinct roles in the organism.