DNA Structure & Replicaiton

Front

What is the correct order of steps for DNA replication?

Back

unwind (make it straight), unzip, bring in new nucleotides, wind back up

Front

What does it mean to say DNA replication is 'semi-conservative'?

Back

A new strand is built from an original strand

Front

Which organelle is DNA usually found in?

Back

nucleus

Front

What are the components of a nucleotide?

Back

Sugar, Phosphate, nitrogen base

Front

Purines always pair with which type of base?

Back

pyrimidines

Front

What is the structure of DNA?

Back

Double helix made of two strands of nucleotides.

Front

What are the four nitrogen bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine

Front

What is the role of helicase in DNA replication?

Back

Unzips the DNA double helix.

Front

What is the function of DNA polymerase?

Back

Adds new nucleotides to the growing DNA strand during replication.

Front

What is the significance of the 5' and 3' ends of DNA?

Back

Indicates the directionality of the DNA strands.