The Basis of DNA Technology

Question 1

Which examples are of biotechnology in agriculture?

Revolt · Accepted Answer

Bananas can be picked long before they are ripe and then sprayed with chemicals to ripen them.; Corn can be grown with a gene that makes it resistant to pesticides.; Tomatoes can be developed with vaccines.; Wheat can be grown with higher vitamin contents.

Question 2

Look at the graph to answer the questions about genetically engineered crops.What percentage of acres were devoted to HT corn in 1999? What percentage of acres were devoted to HT soybeans in 2005? Genetically modified crops have drastically in recent years

Revolt · Accepted Answer

10%; 90%; increased

Question 3

Which examples are of biotechnology?

Revolt · Accepted Answer

analyzing DNA from a crime scene; genetically modifying corn to grow more quickly

Question 4

Identify which form of DNA analysis is described below. It analyzes genetic markers that are passed from father to son. The FBI utilizes these for their database. It is used when other forms of DNA analysis are not possible because it does not rely on nuclear DNA. It allows a small amount of DNA to be duplicated into a testing amount.

Revolt · Accepted Answer

PCR (polymerase chain reaction); STR (short tandem repeats); mtDNA analysis; Y-chromosome analysis

Question 5

Which examples show how DNA technology has been used in medicine?

Revolt · Accepted Answer

The hormone testosterone can be produced through genetic engineering.; Antibiotics like amoxicillin are available all over the world.; Vaccines can be mass produced from transgenic bacteria.

Question 6

How often do you eat genetically modified foods? Check each food you have eaten in the last week that was not organic. Check all that apply.

Revolt · Accepted Answer

processed cereal; fast food / frozen french fries; bread; fruit from a grocery store

The Basis of DNA Technology Answers

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