Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. It has been discovered that the genetic material is protein.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 2. Hershey and Chase were the first two scientists to prove that genetic material is composed of proteins.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 3. The five-carbon sugar in DNA nucleotides is called ribose.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 4. After years of research, the structure of the DNA molecule is now known to be a double helix.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 5. Franklin’s X-ray diffraction images suggested that the DNA molecule resembled a tightly coiled spring, a shape called a helix.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 6. In all living things, DNA replication must occur after cell division.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 7. Before a DNA molecule can replicate itself, it must coil up.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 8. Helicases unwind the double helix of DNA by breaking the nitrogen bonds that link the base pairs.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 9. Errors in nucleotide sequence that occur during replication cannot be corrected.

Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 10. RNA molecules contain the five-carbon sugar ribose.