Question

If one side of a DNA molecule reads ATGCCGT, what would the complementary side read?

Answer 1

See Below

Explanation:

I've gotten used to writing DNA from the 5end to the 3 end (5 prime, 3 prime). The other way of saying it is Top Strand and Bottom Strand....you've got written the top strand, and you want the complement, or bottom strand.

5` ATGCCGT 3'
3' t a c ggca 5'

so the complementary strand would read: (5-3)
acggcat

Answer 2

`"TACGGCA"`

Explanation:

We want to find the complementary strand of `"ATGCCGT"`.

Remember that `"A"` is adenine, `"G"` is guanine, `"C"` is cytosine, and `"T"` is thymine.

Adenine always bonds with thymine, and guanine only bonds with cytosine. In `"RNA"` however, uracil `("U")` is substituted for thymine instead.

So, in translation, adenine turns into thymine, and guanine turns into cytosine, and vice-versa.

So, the complementary side would read `"TACGGCA"`.