Question 54
(Multiple Choice)
Use the following figure to answer the next few questions.
This figure shows a diagram of blocks of genes on human chromosome 16 and the locations of blocks of similar genes on four chromosomes of the mouse.
-Several of the different globin genes are expressed in humans,but at different times in development.What mechanism could allow for this?
A)exon shuffling
B)intron activation
C)pseudogene activation
D)differential translation of mRNAs
E)differential gene regulation over time
Answer