DNA Structure and Replication
Without telomerase, what would happen to the ends of chromosomes after each round of replication?

Chromosomes would get longer
Nothing would happen
None of these
Chromosomes would become progressively shorter

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DNA Structure and Replication
In DNA, there are

five bases known as adenine, guanine, thymine, tryptophan and cytosine
four bases known as adenine, guanine, thymine and cytosine
only two bases known as adenine and cytosine
three bases known as adenine, guanine and cytosine

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