Scientists use this technology to map the human genome.

Genome mapping.

Explanation:

The human genome project (HGP) was an international project with the goal of determining and the sequence of nucleotide base pair that make up human DNA.  

Genome mapping is used to identify and record of genes and  to find distance between the genes on a chromosome. It provides the starting of human genome project. There are two types of genome mapping:

Genetic mapping and physical mapping: Both types of mapping guides location towards the gene on a chromosome.

Genetic mapping is used to find find genetic information present on the chromosome during meiosis.

Physical mapping is used to find physical distance between known DNA  sequences including genes.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a