Homework Answers
20 b- tandem repeat .
In tandem repeats the nucleotide base pairs are arranged in short repeating sequences which are adjacent to each other
Eg from the question ACGG is a short sequwnce of base paors ,its repeated again in the same order and adjacent to it .
In palindromic sequence the the base pairs would resemble the same sequence in the reverse direction on the complementary DNA strand .
So if the base pairs on DNA ( 3' -5' direction) strand is
T T A G C A C G T G C T A A
On complementary strand it would be ( 5'-3' direction)
A A T C G G C A C G A T T ( exact opposite of the coding strand ).
In Mirror repeat the exact same sequences occur within the same strand.
T T A G C A C C A C G A T T
A A T C G T G G T G C T A A
22. Since its a tandem repeat ,the first sequence of nucleotide base pairs will be repeated in the same strand adjacent to each other.
| A | T | C | C | A | T | C | C |
| T | A | G | G | T | A | G | G |
The nucleotide at the end of the arrow is G.
So option c is the correct answer .
If this helps give it a positive rating . Thank you.
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