Question

Fill in the table below by writing the complementary strand of DNA that would be formed by each template strand

Answer 1

Answer:

DNA strand = complementary strand

GCAAG = CGTTC

TTACG = AATGC

GATAC = CTATG

CGGAT = GCCTA

DNA strand = mRNA strand

CGATT = GCUAA

GCTTA = CGAAU

GCATC = CGUAG

TTCAT = AAGUA

Explanation: A complementary strand is not the same in base composition and sequence with the template strand. In DNA, anywhere adenine is found in the template strand, thymine is found in the complementary strand and anywhere cytosine is found in the template strand, guanine is found in the complementary strand. But in RNA, anywhere adenine occurs in the DNA template strand, uracil occurs in the mRNA strand, wherever thymine occurs in the DNA template strand, adenine occurs in the mRNA strand and wherever guanine occurs in the DNA template strand, cytosine occurs in the mRNA strand.

Summarily, in DNA adenine pairs with thymine while cytosine pairs with guanine while in mRNA, adenine pairs with uracil, while cytosine pairs with guanine.