FLASHCARDIZZ - DNA Replication Review

Front

A DNA nucleotide contains all of the following, except...

Back

Cholesterol

Front

What is the shape of DNA?

Back

Double helix

Front

DNA replication turns two strands of DNA into four strands of DNA. What percent of DNA is original and new?

Back

Half of each molecule is new DNA and half is the old DNA

Front

Why does DNA need to replicate/be copied?

Back

To create another copy for a new cell

Front

What is the name of the enzyme that unwinds and unzips DNA?

Back

DNA Helicase

Front

Match the nucleotide with its complementary nucleotide (DNA to DNA): Adenine -

Back

Thymine

Front

Which enzyme is responsible for adding the free nucleotides to the exposed bases on the DNA strand?

Back

DNA polyermase

Front

Which is the first step?

Back

DNA Helicase unwinds original DNA strand

Front

Which is the second step?

• DNA Helicase unwinds original DNA strand
• RNA Primase lays down RNA primer for new nucleotide bases.
• DNA polymerase builds new strands by bringing in new nucleotide bases.
• Ligase knits together fragments on lagging strand

Back

RNA Primase lays down RNA primer for new nucleotide bases.

Front

Which is the THIRD step? Options: DNA Helicase unwinds original DNA strand, RNA Primase lays down RNA primer for new nucleotide bases, DNA polymerase builds new strands by bring in new nucleotide bases, Ligase knits together fragments on lagging strand

Back

DNA polymerase builds new strands by bring in new nucleotide bases.