Question

If one strand of a dna molecule has the sequence of bases 5'-attgca-3', the other complementary strand would have the sequence ________.

Answer 1

a pairs with t
g pairs with c
so taacgt

Answer 2

3'-taacgt-5´

Step-by-step explanation:

In the DNA molecule we find pure bases (adenine and guanine) and pyrimidines (cytosine and thymine).

The bases are paired (leaving one base of each type) as follows:

Adenine - Thymine: joined by two hydrogen bonds

Cytosine- Guanine: joined by three hydrogen bridges

If we have a DNA molecule with the base sequence

5'-attgca-3 'the complementary chain will be formed as follows

3'-taacgt-5'.