All of the following cell types contain the enzyme telomerase which protects the length of telomeres at the end of chromosomes, except:
Germinal
Somatic
Hemopoietic
Tumor
Telomerase is the enzyme responsible for telomere synthesis and is responsible for maintaining the length of the telomere. Telomerase enzyme is not present in somatic cells. Ref: Lippincott's Illustrated Reviews: Biochemistry, 3rd Edition, Chapter 29, Page 405