Review sheet Chapter 13 Part I
DNA and Replication
Part I. Fill in the blank. Complete each sentence below with the appropriate term(s).
1. DNA is in the shape of a ______________ ________________.
2. DNA is made of nucleotides. The three parts of a nucleotide are ___________________,
______________________, and ____________________.
3. The instructions for inherited traits are known as ________________.
4. The process in which an exact copy of the DNA sequence is made is called
______________ _______________________.
5. The location in the cell where the process named in number 4 occurs is the
____________________.
6. DNA contains the sugar __________________________.
7. ___________________ and __________________ made the first model of DNA.
8. The scientists named in number 7 were able to determine the structure of DNA due to the
work of ______________________ and ____________________, who determined the
shape of DNA based on X-ray studies.
9. The enzyme that breaks the hydrogen bonds between the bases is known as
_______________________.
10. The enzyme that adds new nucleotides to the parent strand of DNA is known as
______________________________.
11. The original strand of DNA to which new nucleotides are added is called the
__________________ strand, while the new strand is called the _____________ strand.
Part II. DNA replication.
12. Given the parent strand listed below, what would be the daughter strand created during
DNA replication?
CGG TTA GGC ATT CTA CTA
Part III. DNA diagram.
13. On the diagram below, label each of the following parts:
Nucleotide
Phosphate
Hydrogen bond
Sugar
Cytosine
Thymine
Adenine
Guanine
Part IV. Short answer.
14. Why is DNA replication important to cell division?
15. What are some situations in which your body would need to make new cells?
Part V. Steps of replication. Place the steps in order from first (1) to last (3).
___ 16. Adding complementary bases.
___ 17. Formation of 2 identical DNA molecules.
___ 18. Unwinding and separating DNA strands.