i need a little help on a couple biology questions?

[Cristiano]

1) What is DNA replication?

2) Where in the cell does this process occur?
3) When does this process occur?

4) Why must DNA replicate itself before one cell divides to form 2 cells?

5)What 2 things does DN helicase do before new nucleotides can be added to the exposed nitrogen bases?

6) What do you call the areas on a DNA molecule where the double helix has seperated and replication is about to begin?

7) What enzyme moves along the 2 old DNA strands, adding complementary nucleotides?

8)What is the end result of DNA replication? Fill in -> _____ DNA molecules, each composed of ( ) and an ( ) strand.


9.) Explain why DNA replication in eukaryotic cells begins at about 100 replication forks on each chromosome instead of starting at one end.













If you could answer a few of these i would appreciate it soo much..


Thanks

[rebecca k]

a few questions! this seems like the whole sheet maybe you should look up DNA replication in your textbook or the net and do them yourself you willnever learn if people just tell you the answers
if your stuck on a question and have tried toi find the answer but cant then ask for help not just because your lazy

[Gwendolyn E]

2) nucleus or nucleolus

4) Must replicate so the second cell can have DNA as well

[Gwendolyn E]

2) nucleus or nucleolus

4) Must replicate so the second cell can have DNA as well