Question

among birds, some skin cells grow feather when they mature, while other skin cells grow scales are maturity. which statement best explains this difference?

• while all cells have the same dna, specialized cells express certain traits that produce feathers or scales
• skin cells exposed to colder environments grow feathers, while skin cells exposed to wet environments grow scales
• skin cells that have feathers that are diploid, while skin cells that make scales are haploid
• some skin cells have different dna to build structures like feathers and scales

Explanation:

All somatic cells (like skin cells) in an organism have identical DNA. Differences in cell function (feathers vs. scales) result from differential gene expression—only specific genes are activated in each cell type to produce the respective structures.

Answer:

While all cells have the same DNA, specialized cells express certain traits that produce feathers or scales