Q9 - DNA & Replication Review

DNA was identified as the genetic material through a series of experiments. What is the structure of DNA in all organisms on Earth?

• Different

• Complex

• The same

• Variable

Tags

NGSS.HS-LS1-1

What are the monomers of DNA?

• Amino acids

• Proteins

• Nucleotides

• Carbohydrates

What are the three parts of a nucleotide?

• Sugar

• Phosphate

• Base

• Protein

What is the overall shape of a DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which nitrogen-containing base in DNA pairs with Adenine (A)?

• Guanine (G)

• Cytosine (C)

• Thymine (T)

• Uracil (U)

Which type of bond connects the nitrogen-containing bases in the middle of a DNA molecule?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Metallic bonds

What type of bond connects the molecules in the backbone of a DNA molecule?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Metallic bonds

Where does DNA replication take place?

• In the mitochondria

• In the ribosomes

• In every cell's nucleus

• In the cytoplasm

Why does DNA replication need to occur?

• To repair damaged DNA

• To produce proteins

• To produce new cells

• To modify genetic information

When does DNA replication take place in the cell cycle?

• Gap 1

• Mitosis

• Synthesis

• Gap 2