A DNA template having the base sequence A-G-A-T-G-A would produce a mRNA with a base sequence of ______.
A) A-G-A-T-G-A
B) U-C-U-A-C-U***
C) T-C-T-U-C-T
D) T-C-T-A-C-A
E) A-C-A-U-C-A
To determine the base sequence of mRNA produced from a given DNA template, you need to follow the rules of complementary base pairing. In DNA, adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G). However, in mRNA, thymine (T) is replaced by uracil (U).
The given DNA template sequence is A-G-A-T-G-A. To convert this into mRNA, you need to replace each DNA base with its complementary base in mRNA.
A (adenine) pairs with U (uracil), G (guanine) pairs with C (cytosine), and T (thymine) pairs with A (adenine).
Therefore, the mRNA base sequence would be U-C-U-A-C-U.
So, the correct answer is B) U-C-U-A-C-U.