Question

b. dna replication
dna is the genetic material of cells. before a cell divides, each dna molecule replicates, resulting in identical dna molecules. dna replication, followed by mitosis, enables each daughter cell to receive information identical to that in the parent cell.
study the diagram of the sequence of nitrogen bases below. then complete the diagram by adding th complementary strand beneath it.
g g c - t a c - g t t - c a g
read each of the statements below that describe some aspect of replication. then place a num statement that indicates its proper order in the process.

1. dna molecule splits into separate strands
2. enzymes link the free - floating nucleotides into a long strand
3. weak chemical bonds break between base pairs
4. two identical dna molecules now exist
5. enzymes cause free - floating nucleotides to form complementary templates.

Explanation:

DNA replication involves several steps. First, the weak chemical bonds between base pairs break (this is step 3). Then the DNA molecule splits into separate strands (step 1). Next, enzymes cause free - floating nucleotides to form complementary templates (step 5). After that, enzymes link the free - floating nucleotides into a long strand (step 2). Finally, two identical DNA molecules now exist (step 4).

Answer:

1. 3
2. 4
3. 1
4. 5
5. 2