Question

a human zygote, a single cell, undergoes numerous mitotic divisions to form a complex multicellular organism with specialized tissues and organs. a skin cell, a liver cell from the same individual all have the same genome (dna). which of the following statements best explains how these cells can have different structures and functions? the cytoplasm of each cell type contains different dna, which is passed on to daughter cells during mitosis. the different cell types express different combinations of genes, leading to the production of a specific set of proteins for each cell type. the process of cell differentiation involves random mutations that alter the dna in each cell, leading to unique cell types. the different cell types each have a unique set of genes, with all other genes having been permanently deleted from the genome.

Explanation:

All cells in an organism have the same genome. Cell - type differences arise from differential gene expression, not differences in DNA content. Mitosis ensures that daughter cells receive the same DNA as the parent cell. Random mutations are not the main mechanism of cell - type differentiation, and genes are not permanently deleted from the genome during normal cell development. Different cell types express different combinations of genes, leading to the production of specific proteins for each cell type.

Answer:

The different cell types express different combinations of genes, leading to the production of a specific set of proteins for each cell type.