Denton Independent School District / Overview
Name ______________________________________ Date ______________ Class __________
DNA Replication Worksheet
Use the diagram to answer the questions to the right.
The diagrams below show the steps of DNA replication. Put the steps in order (1-3).
7. __________________ 8. __________________ 9. ___________________
10. What is the first step in DNA replication? ______________________________________________________ __________________________________________________________________________________________.
11. What enzyme matches the bases of free nucleotides to the bases on the parent strand? ______________________________________________
12. If the DNA double helix were a twisted ladder, what would the sides of the ladder be made of? ______________________________________________________________
13. What would the rungs of the ladder be made of? ______________________________________________
Complete the table below.
|NUCLEOTIDE BASE |ABBREVIATION |COMPLEMENTARY BASE |
|14. |T |18. |
|15. |C |19. |
|16. |A |20. |
|17. |G |21. |
Using Biology Book pgs 300-306
22. The three main types of RNA are ____________________, _____________________, and ______________.
23. Copying part of a nucleotide sequence of DNA into a complementary sequence in RNA is called _________________________________.
24. An enzyme that binds to DNA during transcription is RNA _____________________________.
25. During the process of __________________________, the information carried by mRNA is used to produce proteins.
26. Each tRNA molecule contains three unpaired bases, called the ___________________________, which ensure that amino acids are added in the correct sequence.
27. How are DNA and RNA similar and how are the different? ______________________________________ ___________________________________________________________________________________________
Completion Choose the words that correctly complete the following sentences.
28. During DNA replication, the DNA molecule __________________ (separates/combines) into two strands.
29. At the end of DNA replication, ______________________ (four/two) new strands of DNA have been produced, giving a total of ___________________ (four/six) strands of DNA.
30. New DNA is replicated in strands complementary to old DNA because production of new DNA follows the rules of ___________________________ (base pairing/the double helix).
Identifying Structures On the lines corresponding to the numbers on the diagram, write whether the strand pointed to is an ORIGINAL strand or a NEW strand.
-----------------------
1. Which of the labeled DNA strands are the parent strands? ____________
2. Which of the labeled strands are newly synthesized DNA? ___________
3. What nucleotide will be added to strand B next? ___________
4. What nucleotide will be added to strand C next? ___________
5. What holds the bases in strands A and B together? ___________
6. What holds the backbone of strand A together? ___________
31.
34.
33.
32.
31. ____________________________
32. ____________________________
33. ____________________________
34. ____________________________
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related searches
- gadsden independent school district anthony nm
- gadsden independent school district nm
- gadsden independent school district homepage
- gadsden independent school district ho
- gadsden independent school district home
- gadsden independent school district website
- gadsden independent school district calendar
- gadsden independent school district address
- gadsden independent school district jobs
- galveston independent school district tx
- galveston independent school district website
- galveston independent school district jobs