Which of the following is true concerning replication? ...

[amal]

Which of the following is true concerning replication?
  1.Addition of nucleotides to the growing chain takes place in the 3 to 5 direction.
  2.The process is said to be conservative.
  3.The process is catalyzed by DNA polymerase.
  4.The key step is a nucleophilic attack by the 5 hydroxyl of deoxyribose upon the  phosphate of a nucleoside triphosphate.
  5.All of these

Question 2

What is the DNA complement to the following sequence?
   5-CTGAATCGGA-3

  1.5'-TCCGATTCAG-3'
  2.5'-AGGCTAAGTC-3'
  3.5'-GACTTAGCCT-3'
  4.5'-CTGAATCGGA-3'
  5.5'-GAATCGGACT-3'

[cloudre37]

Answer to Question 1

3

Answer to Question 2

1