Molecular Basis...

Two students are given two different double stranded DNA molecules of equal length. They are asked to denature the DNA molecules by heating. The DNA given to student A has a following composition of base (A : G : T : C :: 35 : 15 : 35 : 15) while that given to student B is (A : G : T:  C :: 12 : 38 : 12 : 38). Which of the following statement is true?

The amino acid sequences of a bacterial protein and a human protein carrying out similar function are found to be 60% identical. However, the DNA sequences of the genes coding for these proteins are only 45% identical. This is because

Which conserved motif occur in Escherichia coli genes?

Why does synthesis of DNA proceed only in the $$5'$$ to $$3'$$ direction?

Major difference between replication in bacteria and animal cell is that 

Genetic code was deciphered by chemically synthesizing nucleotides by

In DNA replication, the Okazaki fragments on the lagging strand are joined together by

Nirenberg used an artificial mRNA poly U (UUU...U), which gave rise to polyphenylalanine. This proved that

Which of the following is known as joining enzyme or repair enzyme of DNA?

DNA polymerase enzyme is required for the synthesis of