DNA Structure and DNA Replication

What is the pentagon in the DNA structure called?

• Ribose Sugar

• Deoxyribose Sugar

• Glucose

• Fructose

Tags

NGSS.HS-LS1-1

Look at the image of DNA: what is the green circle called?

• Phosphate Group

• Sugar Group

• Nitrogenous Base

• Hydrogen Bond

What type of bond holds the pentagon and green circle together in the DNA structure?

• Hydrogen bonds

• Ionic bonds

• Covalent bonds

• Metallic bonds

Look at the image of DNA below: what are the squares with letters called?

• Nitrogen Bases

• Amino Acids

• Sugars

• Phosphates

What type of bonds join the squares together in the DNA structure?

• Covalent bonds

• Ionic bonds

• Weak hydrogen bonds

• Metallic bonds

What are the three components that make up a nucleotide in DNA?

• Phosphate group, deoxyribose sugar, base

• Ribose sugar, phosphate group, lipid

• Deoxyribose sugar, amino acid, base

• Phosphate group, ribose sugar, protein

Tags

NGSS.HS-LS1-1

What parts make up the backbone of DNA?

• Phosphate group and deoxyribose sugar

• Adenine and thymine

• Guanine and cytosine

• Ribose sugar and uracil

Tags

NGSS.HS-LS1-1

A _____ is a section of DNA that codes for a protein.

• Gene

• Chromosome

• Nucleotide

• Enzyme

Tags

NGSS.HS-LS1-1

What is the structure of a DNA molecule?

• Double helix or twisted ladder

• Single strand

• Triple helix

• Flat ribbon

Tags

NGSS.HS-LS1-1

When making new DNA, what base pairs with Adenine?

• Cytosine

• Guanine

• Thymine

• Uracil