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Exam 8: Genes to Proteins

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Question 61

Multiple Choice

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An animal modified by humans to carry genes from another species is called

A) complementary.
B) cloned.
C) antigenic.
D) transgenic.
E) a hybrid species.

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Question 62

Multiple Choice

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Which of the following is an example of gene therapy?

A) An ear of corn contains genes that produce natural pesticides.
B) A human has one allele for a normal gene and one allele for a mutated gene.
C) A patient with hereditary anemia is given a normal version of the gene.
D) Protein from a healthy person is injected into someone who cannot make that protein.
E) A human protein is made in bacteria for future injection into someone who lacks it.

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Question 63

Multiple Choice

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Recombinant protein production of spider silk in yeast is an efficient strategy because yeast _____.

A biologist finds a mutation in a gene,but notices that the protein it encodes is not changed in any way.What kind of mutation could have this effect?

The coding sequence of a gene is the portion of the DNA that

A gene is a section of a(n) __________ molecule.

Translation is the process by which

_____amino acids tend to be found folded inside a protein,whereas _____ amino acids interact with water on the outside of the protein.

What does RNA polymerase do?

A dysfunctional antithrombin protein can result from

Use the following information to answer this question: In December 2010,approximately 6000 male mosquitoes were released in Malaysia.They contained a fruit fly gene called "tTA," which kills the mosquito when expressed.In the lab,tTA gene expression was suppressed by treating the mosquitos with tetracycline.The goal for releasing the males was to allow them to mate with wild female mosquitoes.The resulting offspring from this mating would all die,and the number of mosquitoes in the area would plummet,as would the number of humans infected by dengue fever through mosquito bites.The released male mosquitos would then also die from lack of tetracycline-based suppression of tTA gene expression. In the male mosquitoes,tTA is

Use the following information to answer this question: About 1 in every 100 Caucasians suffers from celiac disease.These individuals have severe allergic responses and digestive problems when they eat certain grains.Their illness is caused specifically by gluten,a protein found in wheat,barley,and rye.Treatments for this disease often rely on dietary supplements that contain protein-degrading enzymes that can break down the gluten during normal digestion,making it harmless. One such enzyme is called AN-PEP (an abbreviation for prolyl endoprotease) ,and it is isolated from the fungus Aspergillus niger.Various research groups are investigating ways to use this enzyme to treat humans.One group is researching the possibility of adding the gene for AN-PEP to wheat so that gluten protein will be detoxified at the very source. The wheat cells manipulated by the research group would probably contain

In a spider silk producing transgenic yeast,the _____.

An mRNA molecule with 1200 nucleotides from the beginning of the start codon to the end of the stop codon will make a polypeptide that is ____ amino acids long.

All proteins begin with the amino acid

A piece of mRNA that is 300 bases long can make a protein that has _____ amino acids.

What is a transgenic organism?

Antithrombin deficiency can result from

Which statement is FALSE?

To get optimal production of a human protein in a spider,scientists fused together