Question

the study of nucleic acids began with the discovery of dna, progressed to the study of genes and small fragments, and has now exploded in the field of genomics. genomics is the study of entire genomes, including the complete set of genes, their nucleotide sequence and organization, and their interactions within a species and with other species. the advances in genomics have been made possible by dna sequencing technology. how is biotechnology being used in the fields of medicine, forensics, or agriculture? choose the three that apply. a gel electrophoresis is used for the separation and analysis of dna, rna and proteins, based on their size and charge. b in the future, scientists hope gene therapy will allow doctors to treat a genetic disorder by inserting a gene into a patients cells instead of using drugs or surgery. c dna sequencing may be used along with dna profiling methods for forensic identification and paternity testing. d gene therapy is currently being used to correct genetic mutations by inserting functional genes in their place. e therapeutic cloning could allow an individuals own cells to be used to treat or cure that persons disease, without risk of introducing foreign cells that may be rejected

Explanation:

• Option A: Gel electrophoresis is a core biotech tool used in medicine (e.g., genetic testing), forensics (DNA analysis), and agriculture (genetic screening of crops), so it applies.
• Option C: DNA sequencing/profiling is directly used in forensics for identification, which fits the question’s fields.
• Option D: Current gene therapy for genetic mutations is a medical application of biotechnology, so it applies.

Options B (future hope, not current use) and E (hypothetical "could" without clear current application to the listed fields) do not meet the criteria.

Answer:

A. Gel electrophoresis is used for the separation and analysis of DNA, RNA and proteins, based on their size and charge., C. DNA sequencing may be used along with DNA profiling methods for forensic identification and paternity testing, D. Gene therapy is currently being used to correct genetic mutations by inserting functional genes in their place.