Question

when a stem cell differentiates and changes in size and shape, specific genes are being (1 point)
expressed.
spliced.
transcribed.
copied.

Explanation:

Cell differentiation involves the activation of specific genes (gene expression) to determine cell function, size, and shape. Gene splicing is part of mRNA processing, transcription is the first step of gene expression (but not the overall process determining cell characteristics here), and copying (DNA replication) occurs for cell division, not differentiation - related trait determination.

Answer:

expressed