Which of the following statements about telomerase are true: 1.It extends the 3' end of a linear chromosome one repeat at a time.
2)It uses a built-in DNA to act as a template for synthesis of the telomeric repeat.
3)Without telomerase,linear chromosomes would become progressively shorter.
A) 1
B) 2
C) 3
D) 1 and 2
E) 1 and 3

Question

Quizplus · Accepted Answer

Telomerase extends the 3' end of a linear chromosome one repeat at a time, using a built-in RNA molecule as a template for synthesis of the telomeric repeat. Without telomerase, linear chromosomes would become progressively shorter, causing cellular aging and eventual cell death.

Which of the Following Statements About Telomerase Are True: 1