This is the normal nucleotide sequence on a DNA strand:
A—C—T—G—G—A—T

What is a substitution?

1.) A—C—T—G—C—G—A—T

2.) A—C—T—G—A—T

3.) A—G—T—G—G—A—T

4.) A—C—U—G—G—A—U

the answers is 3 because the secon C was changed to a G.

1 and 2 are incorrect because you do not have the same number of bases as the original sequence. 3 a base was change to the U, which appears in RNA not DNA.

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Аноним Аноним · Answer 2 · 2017-05-08T20:22:50+02:00

Аноним Аноним

08-05-2017

I'm late ik but the answer is actually A-C-T-G-C-G-A-T, and trust it is right because I took the test and the answer below was wrong. But it's not like I'm good at this stuff

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This is the normal nucleotide sequence on a DNA strand: A—C—T—G—G—A—T What is a substitution? 1.) A—C—T—G—C—G—A—T 2.) A—C—T—G—A—T 3.) A—G—T—G—G—A—T 4.) A—C—U—G—G—A—U

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This is the normal nucleotide sequence on a DNA strand:
A—C—T—G—G—A—T

What is a substitution?

1.) A—C—T—G—C—G—A—T

2.) A—C—T—G—A—T

3.) A—G—T—G—G—A—T

4.) A—C—U—G—G—A—U