Biology Chapter

The main enzyme involved in linking individual nucleotides into DNA molecules is

• DNA protease

• ribose

• carbohydrase

• DNA polymerase

When prokaryotic cells copy their DNA, replication begins at

• one point on the DNA molecule

• two points on opposite ends of the DNA molecule

• dozens to hundreds of points along the molecule

• opposite ends of the molecule

The enzyme that unzips the DNA to prepare for replication

• helicase

• replicase

• polymerase

• synthase

DNA replication results in two DNA molecules,

• each one with two original strands

• each one with two new strands

• each one with one new strand and one original strand

• one with two new strands and the other with two original strands

Tags

NGSS.HS-LS3-2

Bacteriophages are:

• a form of bacteria of bacteria

• enzymes

• coils of DNA

• viruses

A nucleotide does NOT contain

• a 5-carbon sugar

• an amino acid

• a nitrogen base

• a phosphate group

In prokaryotes, DNA molecules are located in the

• nucleus

• ribosomes

• cytoplasm

• histones

During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?

• TATGA

• ATACT

• CACTA

• AGTAT

The scientist(s) responsible for the discovery of bacterial transformation is (are)

• Watson and Crick

• Avery

• Griffith

• Franklin

Which of the following does NOT describe the structure of DNA

• double helix

• nucleotide polymer

• contains adenine-guanine pairs

• sugar-phosphate backbone