Question

review the fifth and sixth paragraphs.
5 the hgp has revealed that there are probably about 20,000 human genes - a startling finding, given that previous estimates had ranged from 50,000 to as many as 140,000. the completion of the human sequence means we can now identify their locations. this ultimate product of the hgp has given the world a resource of detailed information about the structure, organization, and function of the complete set of human genes. the information can be thought of as the basic set of inheritable \instructions\ for the development and functioning of a human being.
6 the international human genome sequencing consortium published the first draft of the human genome in the journal nature in february 2001, with the sequence of the entire genomes three billion base pairs about ninety
how do the fifth and sixth paragraphs work together?
they broadly describe the human genome projects findings and then why they are meaningful.
they describe the number of human genes and then why they have only three uses.
they broadly describe the human genome projects findings and then why they are not yet reliable.
they describe the number of human genes and then why there are so many of them.

Explanation:

Paragraph 5 describes the findings of the HGP (number of genes, ability to identify locations, and the resource of information about genes). Paragraph 6 gives the context of when and how (publication in Nature) the HGP's draft was presented. Together, they first present the findings (broadly) and then the context (publication) which shows its significance (as a major scientific achievement to be published in a top - tier journal). The other options are incorrect: there's no mention of only three uses (second option), no indication of unreliability (third option), and no explanation of why there are so many genes (fourth option).

Answer:

They broadly describe the Human Genome Project's findings and then why they are meaningful.