Consider the dna sequence 5'-gattaca-3'. if the strand with this sequence forms a double helix with another dna strand, the sequence on the other strand should be ____.​ 3'-gattaca-5' 5'-ctaatgt-3' 3'-ctaatgt-5' 3'-ctaatgt-3' 5'-ctaatgt-3'

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Answer:

It would be CTAATGT

In DNA, the sequence 5'-GATTACA-3' can form a double helix with another DNA strand having the sequence 3'-CTAATGT-5'.

  • Deoxyribonucleic acid (DNA) is a molecule formed by two antiparallel strands where nucleotides (i.e., their building blocks) interact by hydrogen bonds.

  • Both DNA strands are linked together by hydrogen bonds between pairs of nucleotides.

  • The complementary base-pair rule indicates that Adenine (A) always pairs with Thymine (T) in the opposite DNA strand, whereas Guanine (G) always pairs with Cytosine (C).  

  • Guanine pairs with Cytosine by three (3) hydrogen bonds; whereas Adenine pairs with Thymine by two (2) hydrogen bonds.

In conclusion, in DNA, the sequence 5'-GATTACA-3' can form a double helix with another DNA strand having the sequence 3'-CTAATGT-5'.

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