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Vocabulary
Explain it to Me
Fill in the Blank
Gm Foods & Such
Other Items
100
Which type of genetic engineering has the disadvantage of possibly bringing two recessive alleles together and causing a genetic defect?
Inbreeding
100
How would making crops resistant to herbicides assist farmers?
Farmers can spray weeds without fear of killing the crops. (Answers may vary)
100
Critics of GM crops worry that GM plants engineered to be resistant to insects might unintentionally kill ____________ insects.
beneficial
100
Which statement below might be used by someone who is arguing against the use of GM crops? a. GM crops reduce the amount of land and energy that need to be devoted to agriculture because they have high yields. b. GM crops need more insecticide to be used than other crops because they grow faster. c. The patents for the seeds of GM crops are held by big companies, which may raise prices and force small farmers out of business. d. No studies have shown that GM crops are dangerous to human health.
C
100
Briefly explain what plasmids are and how they can be used to create transgenic organisms.
A plasmid is a circular DNA molecule that is naturally found in bacteria. Scientists use them to transform bacteria and plants.
200
To create animals that have the characteristics of both species, some people have bred buffalo and cattle together. This is an example of
hyrbidization
200
What is a clone
Genetically identical organism made from an existing organism
200
DNA finger printing has dramatically changed the field of _______,which is the study of crime scene evidence.
forensics
200
What is a direct benefit to farmers planting Bt corn?
The Bt toxin will kill of insects
200
Why do scientists use sections of DNA repeats that have little or no known function to do DNA fingerprinting?
These sections of DNA vary widely from person to person.
300
A gene that makes it possible to distinguish bacteria that have been transformed by a plasmid from those that have not is called
a genetic marker
300
Explain the process of cloning and let me know when you are done.
An egg is removed and within that egg the nucleus is removed. The egg is fused with another cell and then implanted to a female to carry the organism to term.
300
Some plasmids have genes that make bacteria resistant to ___________ ,which allows scientists to easily determine which bacteria have been transformed.
antibiotics
300
Why would a farmer choose GM crops over non GM crops?
More productive (Answers may vary)
300
A plant cell is successfully transformed if...
The cell integrates foreign chromosomes into the DNA
400
A DNA molecule produced by combining DNA from different sources is known as
recombinant DNA
400
Why are viruses used in gene therapy?
So they can "infect" the host cell and carry the healthy DNA that will cause the healthy gene to replicate.
400
Bananas planted as crops are ___________ plants which have 2 or 3 times the normal diploid number of chromosomes.
Polyploid
400
What is the mathematical probability of you having consumed food that has been GM?
80%
400
What has been an advantage of producing transgenic plants? a. increasing the food supply c. producing clones b. using more pesticides d. studying human genes
Increasing the food supply
500
Which of the following would require the use of recombinant DNA? a. Crossing two apple trees to create better apples. b. Breeding a donkey and a horse to make a mule. c. Engineering bacteria that produce human insulin. d. Creating a polyploid banana tree.
Engineering bacteria that produce human insulin
500
What does the polymerase chain reaction enable scientists to do?
Allows scientists to make many copies of a gene
500
One reason farmers often choose GM crops over non-GM crops because GM crops are ___________
More productive (Answers may vary)
500
Why would companies not label their food as GM?
Answers may vary
500
The use of DNA fingerprinting relies on the fact that
No two people have exactly the same DNA (except twins)