Biotechnology

An application of using DNA technology to help environmental scientists would be ___.

• use PCR to analyze DNA at a crime scene
• create a tobacco plant that glows in the dark
• clone the gene for human growth hormone to treat pituitary dwarfism
• make transgenic bacteria that can be used to clean up oil spills more quickly than do the natural bacteria

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Which of the following would be an example of gene therapy technology?

• development of a nasal spray that contains copies of the normal gene that is defective in person with cystic fibrosis
• cutting DNA into fragments with restriction enzymes
• modifying E. coli to produce indigo dye for coloring denim blue jeans
• separation DNA fragments using gel electrophoresis

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NGSS.HS-LS3-2

Recombinant DNA are currently used to produce____.

• clothing dye, cheese, and laundry products
• human antibiotics and vaccines
• crops that taste better and stay fresh longer
• all of these

The Human Genome Project has made diagnosing genetic disorders easier.Once a genetic disorder is diagnosed, ____ can be used as a possible treatment.

• cell cultures
• gene therapy
• DNA fingerprinting
• PCR

A gene gun and a virus may both be classified as ____ because they are mechanisms by which foreign DNA may be transferred into a host cell.

• bacteria
• plasmids
• vectors
• splicers

A ____ is a small ring of DNA found in a bacterial cell.

• virus
• plasmid
• gene bullet
• PCR

The entire collection of genes within human cells is referred to as the ______.

• human genome
• karyotype
• pedigree
• gene map

____ is an application of the human genome project that involves the insertion of normal genes into cells with defective genes in order to correct genetic disorders.

• gene gun
• gene mapping
• gene linkage
• gene therapy

Which information was most important to the development of genetic engineering techniques?

• the observation of nondominant alleles
• the discovery of lethal genes
• the formulation of Punnett squares
• the structure of the DNA molecule

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NGSS.HS-LS1-1

NGSS.HS-LS3-2

Cows are selectively bred to produce milk. Which of the following will cause the next generation to receive the trait to produce large quantities of milk?

• nutrients in their food
• mineral in their water
• electrical impulses to their brains
• information in their chromosomes

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NGSS.HS-LS3-1

NGSS.HS-LS3-2