During normal DNA replication, why is part of the DNA at the ends of linear chromosomes NOT copied into the new DNA strands?
a. because DNA ligase cannot join pieces at the end of a chromosome
b. because RNA primers at the beginning of a new strand cannot be replaced with DNA
c. because those ends are Okazaki fragments that are lost
d. because cells do not need the DNA at the ends of chromosomes
Answer: b. because RNA primers at the beginning of a new strand cannot be replaced with DNA
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