DNA Test

DNA Helicase

Unzips the parent double helix

DNA Ligase

Glues together fragments on the lagging strand and reattaches hydrogen bonds

DNA Polymerase

Builds the new DNA strand by matching nucleotides with bases on the parent strand

DNA Primase

Adds a chunk of nucleotide bases, which indicates where replication will start

Adenine pairs with…

Thymine

Guanine pairs with…

Cytosine

DNA Bases

Adenine, Thymine, Guanine, Cytosine

RNA Bases

Adenine, Uracil, Cytosine, Guanine

DNA replication starts with…

1 double helix

DNA replication ends with…

2 double helixes

Each double helix has __ new strand…

1

Each double helix has __ parent (template) strand

1

DNA - Bottom Part

Deoxyribose sugar

DNA - Circle Attached

Phosphate group

DNA - Rectangle Attached

Nitrogenous base

DNA Exonuclease

Removes primers and replaces with DNA nucleotides

The DNA molecule alternates…

Phosphate groups

Deoxyribose sugar

Makes up the backbone of the DNA molecule ladder

Nitrogenous base…

Makes up the rungs of the DNA molecule ladder

The rungs of the DNA molecule ladder are held together by…

Hydrogen bonds

How are DNA and mRNA similar?

Both are made up of nucleic acids, both are made up of nucleotides, and both store and express genetic information

DNA has… (DNA v.s. MRNA)

A, T, G, C for nitrogenous bases, and 2 strands

mRNA has… (DNA v.s. mRNA)

A, U, G, C for nitrogenous bases, and 1 strand

Label diagram with kneading and laggin strand, Okazaki fragments, DNA polymerase and helicase, and primer

How many strands of mRNA are transcribed from the two “unzipped” strands of DNA?

1

If DNA is a double helix, then mRNA is a…

Single helix