Question

Write the sequence of the complementary DNA strand that pairs with each of the following DNA base sequences:

(a) TTAGCC

(b) AGACAT

Short answer

1. The complementary DNA strand is AATCGG, which matches the TTAGCC DNA base sequence.
2. The complementary DNA strand is TCTGTA, which matches the AGACAT DNA base sequence.

Step-by-step solution

Step 1:(a) DNA base sequence of TTAGCC 

Each base is partnered with the same partner at all times. As a result, the complement of one chain's base sequence equals the complement of the other chain's base sequence.

AATCGGis the complementary DNA strand that matches with the TTAGCC DNA base sequence.

Step2:(b) DNA base sequence of AGACAT

TCTGTAis the complementary DNA strand that matches with the AGACAT DNA base sequence.