Answer:
Step-by-step explanation:
1. expression of different genes (all somatic cells have the same genes, but different genes are expressed in different cells)
2. white spruce couldn't tolerate warmer climates and were pushed northward (16,000 yrs ago it began to warm, 10,000 yrs. ago white spruce was further south, now they're limited to much farther north; the warmer it got the farther north the tree's growth was)
3. Translation would stop, and the cell could not produce proteins (transcription of DNA occurs inside the nucleus --> mRNA is produced --> mRNA leaves nucleus --> ribosome translates mRNA into protein; if mRNA couldn't leave the nucleus, the ribosome couldn't translate it and therefore no proteins would be produced)