Question

why do heart cells have different characteristics than skin cells? (1 point) heart cells reproduce by differentiation. heart cells have different dna than skin cells. heart cells express different genes than skin cells. heart cells reproduce by mitosis.

Explanation:

All body cells (including heart and skin cells) have identical DNA. Their distinct characteristics arise from gene expression—only specific genes are activated in each cell type to produce specialized proteins. Differentiation is the process of becoming specialized, not reproduction; mitosis is cell division, not the cause of distinct traits.

Answer:

Heart cells express different genes than skin cells.