Biology DNA

Which of the following is the process by

which DNA makes a copy of itself?

• Transcription

• Replication

• Translation

• Photosynthesis

What do you call to the “twisted ladder”

shape of DNA?

• Double Helix

• Hydrogen twist

• Deoxyribose flip

• Double membrane

Which of the following statements best explains the mechanism for DNA replication?

• DNA replication is reductive, because half the total DNA present is copied.

• DNA replication is dispersive, because the two resulting DNA molecules are mixtures of parent and daughter DNA.

• DNA replication is semi-conservative, because each DNA strand serves as a template during replication.

What is the function of the enzyme DNA

polymerase?

• Gluing together Okazaki fragments

• Unzipping the two strands

• Joining together nucleotide during replication

• Stabilizing the double helix DNA

A method used to rapidly make multiple copies of a specific segment of DNA.

• PCR (Polymerse Chain Reaction)

• Electrophoresis

• DNA Probe

Which is the primary purpose of using restriction enzymes before gel electrophoresis?

• It cuts the DNA strands in a set location for analysis.

• It restricts the number of base pairs that can be tested in a sample

• It makes the testing simpler by moving the strands into the gel faster

• It charges the DNA strands

Which is the primary purpose of using restriction enzymes in gel electrophoresis?

• It allows the strands of DNA to be cut into various lengths for testing

• It restricts the number of base pairs that can be tested in a sample

• It makes the testing simpler by moving the strands into the gel faster

• It charges the DNA strands

The FBI database that stores DNA profiles

• CODIS

• AFIS

• STRATUS

• FEDDNA

When does DNA replication occur during

the cell cycle?

• G1 phase

• S phase

• G2 phase

• Telophase

Which of the following best describes the

arrangement of the sides of the DNA

molecule?

• Twisted

• Bonded

• Alternating

• Antiparallel