Scientific theories have stood the test of time and they will not change. true or false?

false, laws stay the same while theories change

A A C G T C A C C T G A  DNI Matching strand sequence

Explanation:

DNI is composed of subunits called nucleotides. Nucleotides are subunits or monomers composed of a sugar molecule, joined with a phosphate group and a nitrogenated base. The chain or sequence of nucleotides composes the polymer. Different nucleotides joined by their extremes compose the DNA and RNA.  Nitrogenated bases are Adenine, Guanine, Thymine, and Cytosine.  

According to the Watson and Crick model, bases get in pairs by hydrogen bridges:

For DNI complementary strands

- Adenine pairs with Thymine, A ↔ T  

- Guanine pairs with Cytosine, G ↔ C

However, if we are talking about RNA complementary strands, then

- Adenine pairs with Uracile, A ↔ U

- Guanine pairs with Cytosine, G ↔ C

RNA molecule replaces Thymine for Uracile.

The matching strands sequences for the proposed strand are: