THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
CGU-AUA-TTC
|
|
|
GCU-UTU-TTG
|
|
|
GCT-ATA-TTG
|
|
|
GCU-AUA-UUG
|
Detailed explanation-1: -Complementary DNA (cDNA) is a DNA copy of a messenger RNA (mRNA) molecule produced by reverse transcriptase, a DNA polymerase that can use either DNA or RNA as a template.
Detailed explanation-2: -Each base has its complementary base, which means in the double helical structure of DNA, A will have T as its complimentary and similarly G will have C. mRNA is formed as a complementary strand to one of the two strands of the DNA.
Detailed explanation-3: -Complementary strands The complementary strand for DNA must follow the base pairing and polarity rules. Pairing means that A=T and G=C. Polarity means that the strands have to run in opposite directions. First write the correct base pairing below the original sequence and label the 5’ and 3’ ends.
Detailed explanation-4: -Based on complementary base pairing rules, T pairs with A, whereas C pairs with G. Hence, the complementary sequence for 3’ ATGGCT 5’ starting from the 5’ end is 5’ TACCGA 3’.