Unit 5 Practice Test Review

Front

What is the purpose of gel electrophoresis?

Back

Gel electrophoresis separates DNA based on size.

Front

Which enzyme adds nucleotide bases to make a new DNA strand from an original DNA strand?

Back

DNA Polymerase is the enzyme that adds nucleotide bases to form a new DNA strand.

Front

What is the complementary DNA sequence for TTTGGGCCCAAA?

Back

The complementary DNA sequence is AAACCCGGGTTT.

Front

What type of mutation occurs when a nucleotide base is lost from a DNA sequence?

Back

This type of mutation is called Deletion.

Front

Which enzyme unwinds and unzips the DNA strands for DNA synthesis?

Back

Helicase is the enzyme that unwinds and unzips DNA strands.

Front

What is DNA replication?

Back

DNA replication is the process of making a copy of DNA.

Front

What is the role of RNA Primase in DNA replication?

Back

RNA Primase synthesizes a short RNA primer to initiate DNA synthesis.

Front

What is the function of DNA Polymerase during DNA replication?

Back

DNA Polymerase adds nucleotides to the growing DNA strand during replication.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one nucleotide is replaced by another in the DNA sequence.

Front

What is the significance of the 5' to 3' direction in DNA synthesis?

Back

DNA synthesis occurs in the 5' to 3' direction, meaning nucleotides are added to the 3' end of the growing strand.