Quiz: Applications of biotechnology
Provitamin A, also known as beta-carotene, is necessary for human health. People who do not make this substance suffer serious medical problems. Which application of genetic technology has been the MOST promising for treating people who suffer from a deficiency of provitamin A?
Developing GM foods that produce and store provitamin A.
Scientists have developed a variety of genetically modified (GM) crop plants. They may develop many new varieties in the future. Evidence MOST STRONGLY supports which of these predictions about genetic technology and the world's food supply?
Genetic technology has the potential to reduce the cost of many foods and improve their quality.
To cure a genetic disorder, scientists have proposed inserting a copy of the healthy gene into a virus. Then they would use the virus to infect the patient. Ideally, the healthy gene would transform the patient's genome. Scientists have conducted many trials of this procedure.Which is the MOST HARMFUL of the potential drawbacks of this procedure?
The viral genes are more harmful than expected.
Scientists use Choose... DNA microarray hybridization polymerase chain reaction (PCR) restriction fragment technology to study hundreds or thousands of genes at the same time.
dna microarray
Scientists hope that Choose... gel electrophoresis recombinant DNA DNA ligation gene therapy will prove successful in changing a gene that causes a disease or disorder. Another DNA technology, called Choose... plasmid replication DNA fingerprinting polyploidy DNA ligation , is used to identify individuals according to their DNA sequences. This technology is especially useful in Choose... probiotics anaerobics logistics forensics , which is the study of evidence at crime scenes.
gene therapy, dna fingerprinting, forensics
A molecular biologist is evaluating evidence from an investigation of a crime. The evidence includes a DNA sample obtained at the crime scene, as well as a DNA sample of a suspect. To determine whether the two DNA samples match, which sections of each sample should the molecular biologist compare?
sections with repeated sequences between genes
