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TLS Online TPP Program

#Question id: 5206

A microarray known as a GeneChip, with most now known human protein coding sequences, has recently been developed to aid in the study of human cancer by first comparing twothree subsets of cancer subtypes. What kind of information might be gleaned from this GeneChip to aid in cancer prevention?

#Unit 11. Evolution and Behavior

  1. information about whether or not a patient has this type of cancer prior to treatment.

  2. evidence that might suggest how best to treat a personʹs cancer with chemotherapy.

  3. data that could alert patients to what kind of cancer they were likely to acquire.

  4. information about which parent might have provided a patient with cancer-causing genes.

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TLS Online TPP Program

#Question id: 12535

#Unit 10. Ecological Principles

If you were tracking a nutrient molecule through an ecosystem, which of the following statements would you expect to verify?
TLS Online TPP Program

#Question id: 13089

#Unit 13. Methods in Biology

To express a yeast gene in E. coli, your task is to design a strategy to insert the yeast gene into the bacterial plasmid. Below is a map of the area of the yeast genome surrounding the gene in which you are interested.

 
The distance between each tick mark placed on the line above is 100 bases in length
Below are the enzymes you can use, with their specific cut sites shown 5’-XXXXXX-3’ 3’-XXXXXX-5’

 
The plasmid is 5,000 bases long and the two farthest restriction enzyme sites are 200 bases apart. The plasmid has an ampicillin resistance gene somewhere on the plasmid distal from the restriction cut sites.
                              
You do the digestion of the insert and the vector and then ligate the two digestions together. You then transform the ligation into bacteria and select for ampicillin resistance. You get three colonies on your transformation plate. You isolate plasmid from each one and cut each plasmid with the enzyme XbaI. You then run your three digestions on an agarose gel and see the following patterns of bands. Describe what each plasmid actually was that was contained in each of the three colonies.
 
What is the Colony 2’s plasmid is;
TLS Online TPP Program

#Question id: 11958

#Unit 7. System Physiology – Animal

Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids; both digestive processes ________.
TLS Online TPP Program

#Question id: 7254

#Unit 5. Developmental Biology

Following statements regarding to the micromeres specification and regulatory input  in sea urchin embryo. Which of the following statement is correct?
TLS Online TPP Program

#Question id: 31309

#Unit 1. Molecules and their Interaction Relevant to Biology

Which one of the following interactions pairs plays least role in stabilizing B-DNA?