The most appropriate answer would be a)to identify the 3 billion genes that comprise the human genome.
Human genome project was the collaborative international project with the common objective of sequencing the whole genome of a human being and to identify and map all the genes present in the genome.
The project was completed, by sequencing approximately 3 billions base pairs of the human genome.
Later, it was found that only around 20000 protein-coding genes were present in the human genome which was very as compared to the previous estimations (1 million to 50000).
Correct answer: To identify the 3 billion genes that comprise the human genome
The Human Genome Project was an international scientific research project whose main aim is to determine the sequence of nucleotide of DNA, it also aim to identify and map all the genes present in the human.
The main aim of the Human genome Project was to find out the complete and precise sequence of 3 billion base pair of DNA. It addition to sequencing it also aim to develop a new tools to analyze the data obtained and all that information available to facilitate the research and advancement in the field of genetics.
The answer would be - It untwists the double helix and separates the two DNA strands. A helicase is an enzyme used to separate strands of a DNA double helix by breaking hydrogen bonds between annealed nucleotide bases.