DNA Replication and Structure

The process of making more DNA is called

• DNA Duplication

• DNA Replication

• DNA Ditto

• DNA Copying

DNA replication results in each new DNA molecule

• each with two new strands.

• one w/ two new strands, the other w/ two original strands

• each with one complimentary strand and one original template strand

• each with two original strands

During DNA replication, what two processes occur before the two strands can separate?

• unwind and break hydrogen bonds

• unwind and shrink

• unwind and expand

• unwind and add bases

Structure X is

• phosphate

• Deoxyribose

• DNA

• a nucleotide

Tags

NGSS.HS-LS1-1

What are the strong bonds that hold all nucleotides together in a DNA molecule?

• hydrogen

• covalent

• ionic

• polar

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids

• nucleotides

• fatty acids

• polysaccharides

The enzyme that unwinds the DNA to prepare for replication

• helicase

• replicase

• polymerase

• synthase

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication

• Translation

• Transcription

Which enzyme is responsible for adding nucleotides?

• Topoisomerase

• DNA Polymerase

• Ligase

• Primase

The process of DNA replication is called semi conservative because it results in

• none of these

• Two DNA molecules.  One original molecule and one with two new strands

• two exact copies with new strands

• two identical molecules, each with 1 original strand and one new.