Question

Where would you expect to find very few CpG islands?

-genes that are constitutively expressed
- surrounding highly inducible pathogen response promoters
- surrounding genes involved in housekeeping metabolic activities
-some types of tissue-specific genes

Answer 1

Housekeeping genes involved in metabolic activities would be expected to have very few CpG islands.

Step-by-step explanation:

Very few CpG islands would be expected to be found surrounding genes involved in housekeeping metabolic activities. Housekeeping genes are constitutively expressed and their products are constantly present in the cell.

These genes are essential for cellular maintenance and are required for core metabolic functions. Since housekeeping genes are always active, they do not require regulation through CpG islands.