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Flashcards for Biology Chapter 7
Flashcards for Chapter 7 in Mr. Richards sophomore biology class
20
Biology
10th Grade
12/06/2011

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Term
What is biotechnology?
Definition
the process of manipulating an organism in order to facilitate the production of products or even to create new products
Term
What is cloning?
Definition
the creation of an exact genetic duplicate of a molecule, cell, or complete organism
Term
What is natural Cloning?
Definition
cloning that happens naturally by producing asexually or in humans when identical twins are born.
Term
What is artificial clon?
Definition
an organism that man has helped or forced to clone
Term
What is a method used for artificial cloning?
Definition
the nucleus of one ovum cell is taken out using a needle, and the nucleus of another cell is placed into the empty ovum. this cell is then placed in a surrogate mother
Term
What are the advances being made in human cloning?
Definition
Human cloning is separated into two different categories-reproductive and therapeutic. Reproductive is so that a couple can have a baby while therapeutic is is used to produce cells for the treatment of disease
Term
What are progresses being made in cloning in general?
Definition
scientists are beginning to use cross-species cloning. This is where the eggs of one species are emptied of their nuclei, and inserting the nucleus from another species of animal that is the same as the parent
Term
What are stem cells?
Definition
undifferentiated cells-cells that can become any type of cell or tissue
Term
What are the differences between somatic and embryonic stem cells?
Definition
Somatic stem cells are from adult cells in the bone marrow that are not fully specialized while Embryonic stem cells come from an unborn fetus that is killed in the process
Term
Why are stem cells important in research?
Definition
because scientists are looking towards them for cures to diabetes, Parkinson's disease, and spinal cord injuries. This also would eliminate the chance of rejection of the cells/tissue because it is from the same person
Term
What is gene therapy?
Definition
the technique to correct a defective gene that has been identified as the cause of a specific disease
Term
What are some problems with gene therapy?
Definition
Short duration, viral vector problems, immunity issues, multiple gene interactions
Term
What is DNA fingerprinting?
Definition
determing a persons DNA in order to compare it with other DNA or see what their genes are
Term
How does DNA fingerprinting work?
Definition
A DNA strand is cut using an enzyme that only cut at specific nucleotides, the cut pieces are dran thro a gel using electrical current, a photograph of the resulting distances travelled by DNA fragments thru gel leav ea distictive code which is the identification of a person's DNA
Term
What are some practical uses of DNA fingerprinting?
Definition
Diagnose inherited disorders, Identify criminals or prove innocence of a person, Identify lost or unidentified individuals, prove parency
Term
What are some benefits of genetically modified plants?
Definition
Genetically modified plants are pest resistant, Herbicide resistant
Term
What are some problems/fears of genetically modified plants?
Definition
Are they safe for humans, will pest build up resistance, could super plants that cannot be controlled be produced, who owns the plants, what is their affect on the environment and ecosystem, all GM plants must be approved by several government agencies
Term
What is genetic engineering?
Definition
splicing a desirable gene into a DNA molecule or deleting an undesirable one
Term
What are some concerns with DNA fingerprinting?
Definition
that insurance companies will begin to use it to determine insurability or companies hiring based on certain DNA traits
Term
What is the Human Genome Project?
Definition
scientific research group that identified all of the genes in human DNA
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