Fill-In The Blank: Replication, RNA, and Transcription DNA Structure Word Bank: You can use a term more than once.

Backbone DNA ligase cytosine deoxyribose DNA DNA polymerase

double helix hydrogen helicase nitrogenous base nucleotides 5’ to 3’ Okasaki fragments protein parent strands purines making proteins

3’ to 5’ pyrimidines ribose RNA 2 identical

single strand storing thymine uracil lagging strand

leading strand nucleus cytoplasm mRNA RNA Polymerase

DNA must replicate as part of cell division. The enzyme that causes DNA to unwind is called (1) helicase. It breaks the hydrogen bonds between the complementary nitrogenous base pairs, separating the double helix into two _(2). Each of these parent strands serves as a template for new DNA. The enzyme that connects complementary bases of free nucleotides is called (3). The new complementary strands are made in the (4)