.) CAGTGCAT _________ a) CGGTGTCT
2.) TGACTAAG _________ b) ACTGATTC
3.) GCCACAGA _________ c) GTCACGTA
.) CAGTGCAT to CGGTGTCT:
To find the complement of a DNA sequence, you need to replace each nucleotide with its complementary base. In DNA, adenine (A) always pairs with thymine (T), and cytosine (C) always pairs with guanine (G). Therefore, to find the complement of CAGTGCAT, you would replace each base as follows: C becomes G, A becomes T, G becomes C, T becomes A, G becomes C, C becomes G, A becomes T, and T becomes A.
Hence, the complement of CAGTGCAT is CGGTGTCT (choice a).
2.) TGACTAAG to ACTGATTC:
Similar to the previous example, we need to find the complement of the DNA sequence TGACTAAG. By replacing each nucleotide with its complementary base, we get AACTGATT.
Therefore, the complement of TGACTAAG is ACTGATTC (choice b).
3.) GCCACAGA to GTCACGTA:
Again, we need to find the complement of the DNA sequence GCCACAGA. By replacing each nucleotide with its complementary base, we get CGGTGTCT.
Therefore, the complement of GCCACAGA is GTCACGTA (choice c).