science-important!

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I really need to make sure this is correct for tommorow please help!

The significance of specific base pairing in DNA is that

A) it stabilizes the sugar molecule
B) it provides a method for making exact copies of DNA
C) it prevents errors in DNA replication
D)protein copies can be be made directly from the DNA

I'm pretty sure the answer is D, am I correct?

  • science-important! -

    the answer is C. because the pairs are unique to each other [a-->T, G-->C] then they are unable to form incorrectly. they still replicate incorrectly, of course, but not nearly as much error occurs

  • science-important! -

    Yeh that's what I thought too but apparently I got it wrong on my homework. The class is online and we can make corrections but I thought it was right to begin with so now I'm confused

  • science-important! -

    huh.
    well, i doubt it is D. it is not necessarily because of the pairing that protein copies are made.
    A could be referring to the 5 carbon sugar forming the helix of the DNA, but again i fail to see why the pairing itself has an affect on it.
    i would argue that B is correct because like i said above a-->t only so using half the DNA strand and attaching a pair would provide a concrete method. it would be like so: 0-->1, 1-->0
    0100110
    1011001
    you could use one line or the other to pair it with a matching value and end up with the same pair, if that makes sense.

  • science-important! -

    Alright well thanks a lot i guess I'll just have to check with my teacher for sure.

  • science-important! -

    What was the correct answer?

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