Cancer : 50 What specifically makes cancer cells so harmful to the other cells around them? ANSWER
Cancer : 50 - Answer Cancer cells are undifferentiated, meaning they don’t do the job they are supposed to. All of their energy goes into dividing and they require a lot of nutrients to do so, thus they are using up the nutrients faster and essentially stealing them from nearby cells.
Biotechnology : 10 What units do micropipettes measure in? ANSWER
Biotechnology : 40 What property of the agarose gel makes it useful to sort molecules by properties such as size and shape? ANSWER
Biotechnology : 40 - Answer Agarose gels contain microscopic pores that act as sieves (they sort the molecules because it’s easier for some molecules to work their way through the pores).
Biotechnology : 50 What is the purpose of the buffer used in gel electrophoresis? ANSWER
Biotechnology : 50 - Answer The buffer serves to make the water a better conductor of electricity and to control the pH.
DNA Fingerprinting : 10 Which fragment could you state is the smallest out of all of the fragments on this DNA fingerprint? (Could be from any lane) ANSWER
DNA Fingerprinting : 10 - Answer The band that is farthest from the wells is the smallest.
DNA Fingerprinting : 20 What is the purpose of restriction enzymes? ANSWER
DNA Fingerprinting : 20 - Answer Restriction enzymes cut DNA at specific sequences. (Thus making different sized fragments of DNA that will make different bands on the gel)
DNA Fingerprinting : 30 Who committed the crime? How do you know? ANSWER
DNA Fingerprinting : 30 - Answer Bubba – his DNA fingerprint matches the DNA from the crime scene
DNA Fingerprinting : 40 What would have to be true for this Man to be the child’s father? ANSWER
DNA Fingerprinting : 40 - Answer Half of the child’s DNA bands would match the mother’s and the other half would match the Man’s. Since it doesn’t, the man is not the father.
DNA Fingerprinting : 50 Why do we use the control DNA (in lane 2) to help us determine if Valerie has the mutation characteristic of Li- Fraumeni syndrome? ANSWER
DNA Fingerprinting : 50 - Answer The control test tube is used to compare if she has any normal p53 tumor suppressor genes. In her blood and normal breast tissue she is heterozygous meaning she has one normal gene and one mutated.
Miscellaneous: 10 In which phase do cells spend most of their time in during the cell cycle? ANSWER
Miscellaneous: 30 Name three types of treatment for cancer. ANSWER
Miscellaneous: 30 - Answer Surgery Radiation Therapy Chemotherapy
Miscellaneous: 40 Describe the difference between radiation therapy and chemotherapy. ANSWER
Miscellaneous: 40 - Answer Radiation therapy is where physicians use radiation to burn or kill cells in a specific area. Chemotherapy is the use of chemicals/medication to systematically kill cells that are rapidly dividing.
Miscellaneous: 50 Name two reasons for why it is important to stay within the designated range of the micropipette. ANSWER
Miscellaneous: 50 - Answer 1.So you don’t damage the micropipette 2.It is more accurate to pipette within the range.