Introduction to DNA Replication

Which of the following nucleotide base sequences complements the section of DNA below?

AAT CGC

• AAT CGC

• TTA CGC

• CGC TAA

• TTA GCG

A DNA molecule is shown below on the left and a pool of new nucleotides is shown below on the right of the picture.

What will the new DNA molecules look like after DNA replication?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-1

__________ adds new nitrogen bases according to the base-pairing rules to create two identical molecules of DNA.

• DNA polymerase

• DNA helicase

• DNA ligase

• DNA primase

Which of the following best describes how replication is semi-conservative?

• a replicated DNA molecule consists of two new strands, the original strand is not kept

• DNA replication conserves energy for later use

• a replicated DNA molecule consists of one original strand and one new strand

• the replication of DNA never takes place with 100% accuracy

In order for the DNA to replicate the _______ bonds between base pairs must be broken.

• hydrogen

• covalent

• nucleic

• nucleotide

DNA replication starts with _________ unzipping the DNA.

• DNA polymerase

• RNA primase

• DNA ligase

• DNA helicase

DNA replication is ____________, meaning each new molecule of DNA has one new strand and one old strand.

• conservative

• semi-conservative

• recycled

• complete

Determine the complementary strand of DNA for the following sequence: TGT CAT

• ACA GTA

• CCG TCA

• GGG ATT

• CGT TTA

Which organelle is DNA usually found in?

• Nucleus

• Flagellum

• Cytoplasm

• Ribosome

Tags

NGSS.MS-LS1-2

In DNA, Adenine (A) bonds with ______________.

• Thymine (T)

• Guanine (G)

• Cytosine (C)

• Adenine (A)