DNA Structure, Function, and Replication

How is the instructions for your traits carried on a DNA molecule?

• Sequence of the nitrogen bases

• In the 5 Carbon Sugar

• In the bond between the phosphate and the sugar

• In the phosphate group

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

A building block of DNA, consisting of a five-carbon sugar bonded to a nitrogenous base and a phosphate group.

• Nucleus

• Adenine

• Thymine

• Nucleotide

Part B of the diagram is a

• Phosphate

• Nucleic acid

• Nitrogenous base

• Deoxyribose sugar

The four bases are

• Adenine, Guanine, Cytosine and Uracil

• Adenine, Guanine, Cytosine and Thymine

• Adenine, Uracil, Cytosine and Thymine

• Adenine, Guanine, Cytoplasm and Thymine

What is the base sequence of strand X?

• G-T-A-C

• T-G-C-A

• G-T-C-A

• A-T-C-G

What is the purpose of DNA replication?

• Cut the DNA 

• Make more cells

• Apoptosis

• Duplicate the DNA

Why is it crucial that living things are able to replicate their DNA?

• Each cell must have its own DNA

• Less copies of DNA are needed when a new cell is created

• A cell needs multiple copies of DNA

• Only muscle cells need DNA 

Tags

NGSS.HS-LS3-2

Which enzyme is responsible for adding nucleotides?

• Topoisomerase

• DNA Polymerase

• Ligase

• Primase

order of replication

• 3, 4, 2, 1

• 3, 1, 4, 2

• 2, 1, 4, 3

• 3, 4, 1, 2

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

• Replication

• Translation

• Transcription