Question

value: 5
what is the complementary dna sequence for the following
tagcatccga
a. atcgatggct
b. tacgatggct
c. atcgtaggct
d. aucguaggcu
e. utcgtuggct
check answer
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Explanation:

Step1: Recall base - pairing rules

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

Step2: Find complementary bases

For the DNA sequence TAGCATCCGA, the complementary bases are:
T - A, A - T, G - C, C - G, A - T, T - A, C - G, C - G, G - C, A - T.
The complementary sequence is ATCGATGGCT.

Answer:

a. ATCGATGGCT