Title: Unit 8 Quiz
Course: SAT 170 Introductory Biotechnology > Section: SAT 170 Introductory Biotechnology

Q: Which of the following correctly describes primary cells?
- primary cells is another term to describe embryonic stem cells
- cells which have had their nucleus removed
- cells that has been collected from an organism to establish a primary cell culture
- cells that are applied to a scaffold for tissue engineering
- none of the above
A: cells that has been collected from an organism to establish a primary cell culture

Q: Which of the following is true regarding embryonic stem (ES) cells?
- they can be collected from the morula stage of the embryo
- they are derived from the inner cell mass of the blastocyst stage of the embryo
- they can be totipotent
- they can be pluripotent
- all of the above
A: all of the above

Q: Which of the following correctly describes the plant culture method known as grafting?
- the use of a scaffold for the development of plant tissues on that scaffold
- a form of plant cloning where a portion of a plant (often a stem or root) is removed from the original plant and placed in the appropriate conditions for it to grow into a new complete plant
- a form of plant cloning where a portion of one plant is removed and joined with the root system of another plant
- a form of plant cloning which involves transferring cells or tissues from a plant to the appropriate growth medium
- none of the above
A: a form of plant cloning where a portion of a plant (often a stem or root) is removed from the original plant and placed in the appropriate conditions for it to grow into a new complete plant

Q: Which of the following is true regarding aseptic technique?
- it is a set of practices that are used in the laboratory setting to inhibit contamination of tissue cultures by microorganisms
- it is a set of practices that are used in the laboratory setting to inhibit contamination of your environment from the bacteria that you are trying to culture
- it involves the use heat and/or disinfectants to sterilize your tools and work space
- it involves minimizing exposure of media to the environment
- all of the above
A: all of the above

Q: Senescence is a resting stage for cells where they stop dividing to produce new cells.
- True
- False
A: True

Q: A bioreactor is a vessel or chamber that is used to grow living organisms or support biological processes.
- True
- False
A: True

Q: Fastidious bacteria are those which require specific sets of nutrients for growth.
- True
- False
A: True

Q: Solid growth media contains agar to create surfaces that can serve as platforms for the growth of cells.
- True
- False
A: True

Q: Histone acteylation is an epigenetic modification where methyl chemical groups are attached to the nucleotides of DNA.
- True
- False
A: False

Q: ______________________________ are stem cells which are generated as a differentiated cell is reprogrammed into its undifferentiated state.

Q: Stem cells that are ______________________________ are able to differentiate into any cell type.

Q: ______________________________ is the removal of the nucleus from a cell.

Q: ______________________________ are the sequences found at the end of a DNA molecule or chromosome which shorten each time the DNA is replicated.

Q: ______________________________ are the oldest human cell line, first isolated from Henrietta Lacks in 1951.

Q: Describe the cloning process known as somatic cell nuclear transfer (SCNT).