Question

1. true or false

dna has to completely unwind before replication can begin.
true
false
question 10
1 pts

1. what would be the complimentary strand of the following dna:

tag cat act tac
cat tag tac act
tac act cat tag
auc gua uga aug
atc gta tga atg

Explanation:

For the first question, DNA replication occurs at replication forks. The helicase enzyme unwinds only a small portion of the DNA at a time, not the entire molecule. So the statement "DNA has to completely unwind before replication can begin" is false.
For the second question, in DNA base - pairing, A (adenine) pairs with T (thymine) and C (cytosine) pairs with G (guanine). Given the DNA strand TAG CAT ACT TAC, we pair each base:

• T pairs with A, A pairs with T, G pairs with C, C pairs with G, A pairs with T, T pairs with A, A pairs with T, C pairs with G, T pairs with A, A pairs with T, C pairs with G.

The complementary strand is ATC GTA TGA ATG.

Answer:

1. False
2. ATC GTA TGA ATG