What percentage of human DNA is similar across all humans?

• 99.9%

• 90%

• 95%

• 100%

What is the relationship between DNA and chromosomes?

During which phase of the cell cycle does DNA condense into chromosomes?

• Cell division

• Interphase

• G1 phase

• G2 phase

What are the four bases that make up the genetic code in DNA?

• A, T, G, C

• A, U, G, C

• A, T, G, U

• A, T, C, G

The process of copying DNA is called ___ replication.

What is the term for mistakes that occur during the DNA copying process?

• Mutations

• Errors

• Defects

• Anomalies

In DNA, which base is complementary to Adenine (A)?

• Thymine (T)

• Guanine (G)

• Cytosine (C)

• Uracil (U)

The smaller parts that make up a DNA molecule are called ___________