Ap Bio

Front

What are repetitive sequences of DNA on the ends of chromosomes?

Back

Telomeres are repetitive sequences of DNA (TTAGGG) that protect the ends of chromosomes from deterioration.

Front

DNA is made up of a long chain of what?

Back

DNA is made up of a long chain of nucleotides.

Front

Which enzyme removes the RNA primer and adds DNA nucleotides to fill in the gap?

Back

DNA polymerase I removes the RNA primer and adds DNA nucleotides.

Front

Instead of Thymine, RNA has which nitrogen base?

Back

RNA has uracil instead of thymine.

Front

What is the structure of DNA commonly referred to as?

Back

The structure of DNA is commonly referred to as a double helix.

Front

What is the basic unit of DNA?

Back

The basic unit of DNA is a nucleotide.

Front

What is the role of DNA polymerase III?

Back

DNA polymerase III synthesizes new DNA strands by adding nucleotides to a growing chain.

Front

What is the function of ligase in DNA replication?

Back

Ligase joins Okazaki fragments on the lagging strand during DNA replication.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short sequences of DNA synthesized on the lagging strand during DNA replication.

Front

What is the primary function of RNA?

Back

The primary function of RNA is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.