Question

which sequence of dna bases would pair with this partial strand atg tga cag cat tca ctg tac act gtc atg tga cag gta agt gac

Explanation:

Step1: DNA base - pairing rules

In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).

Step2: Pair each base in the given strand

For the strand \(ATG\ TGA\ CAG\):

• \(A\) pairs with \(T\), \(T\) pairs with \(A\), \(G\) pairs with \(C\) in the first triplet \(ATG\). The complementary triplet is \(TAC\).
• \(T\) pairs with \(A\), \(G\) pairs with \(C\), \(A\) pairs with \(T\) in the second triplet \(TGA\). The complementary triplet is \(ACT\).
• \(C\) pairs with \(G\), \(A\) pairs with \(T\), \(G\) pairs with \(C\) in the third triplet \(CAG\). The complementary triplet is \(GTC\).

Answer:

B. TAC ACT GTC