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genetic engineering
manipulation of the genetic code for some beneft
genetic engineering
What are GMOs an example of? (in most of our plants)
genetic engineering
What are Growth Hormones an example of? (such as growth hormone being inserted into salmon)
cloning
produces an organism genetically identical to parent donor
Udder cells are taken out of the donor mom
Another sheep’s egg is taken out and that nucleus is taken out, so the donor mom’s nucleus with DNA can be put into the other sheep’s egg.
This egg is then implanted into the surrogate sheep mom and surrogate mom gives birth.
The baby sheep is genetically identical to the donor mom since her DNA was in the nucleus in that egg.
Explain how cloning would work regarding a donor sheep, another sheep, and a surrogate sheep.
transgenic organisms
genes spliced from one organism (organ) to another to allow recipient new abilities
putting the firefly gene into a tobacco plant, which makes the tobacco plant glow like a firefly
What are some examples of transgenic organisms?
Repetitive Non-coding
What makes up most of our DNA? (Eukaryotic DNA types)
introns, regulatory genes, and repetitive sequences
What makes up non-coding DNA?
a very small amount, about 1.5%
How much of our DNA is Coding DNA?
Yes
Is it possible to extract or identify repetitive DNA sequences for use in identification?
differences
DNA fingerprinting uses ________ in number of key genetic markers to determine the DNA identity of a sample.
PCR, Gel Electrophoresis
DNA fingerprinting combines _______ and _______.
PCR
amplifies the samples, increases the sample amount that was originally present
Electrophoresis
separates the samples by size of DNA
Gel Electrophoresis
gel used like a filter to separate samples into their various sizes
electric attraction
In Gel Electrophoresis, the molecules are pulled through the gel by __________ _________ forces.
electric attraction forces, the gel is charged and draws certain things into it
In Gel Electrophoresis, how are the molecules pulled through the gel?
to be able to see the differences and similarities in the generated “barcode” in the wells
What does Gel Electrophoresis allow for?
Enzymes that cut the non-coding DNA at specific sites are used, generating DNA fragments.
Explain restriction enzyme analysis.
restriction enzyme sites
DNA fingerprinting may use the number of different _________ _________ __________ on a given set of genes.
RFLPs
In Restriction Enzyme Analysis, everyone’s DNA has enough variation in restriction sites to generate many different sized pieces called _______.
restriction fragment analysis
What happens after restriction enzyme analysis?
restriction fragment analysis
when the resulting fragments of restriction enzyme analysis are separated using a gel and labelled with a visible agent
gene sequencing
Restriction Fragment Analysis is useful in ______ ________.
Restriction Fragment Analysis
allows us to see the differences between the DNA sequences
gene sequencing
a culmination of techniques can be used to fully determine base sequence
Sequence of whole organism: Human Genome Project
allows us to see specific details of the DNA
gene sequencing
goal is to try to find genetic problems within humans and other species
allows us to replicate DNA
Amniocentesis
embryo testing, where a needle is put into the amniotic sac to get amniotic fluid
Chorionic Villi Sampling
embryo testing, uses a tube that goes through the vagina into the placenta to get a piece of embryonic material
Embryo Testing
used to look for harmful genes
No
Can you correct harmful genes using embryo testing?
in a centrifuge
In embryo testing, where are the cells placed?
Fluid and Cells (sex determination, biochemical and enzymatic studies
What makes up the centrifuge?
gene therapy
use of DNA technology to correct or reduce effects of abnormal gene function
bone marrow cells
What type of cells is gene therapy done in?
Harmful cells are “infected” with normal DNA
A virus is used to transport the normal DNA into the chromosome in bone marrow cells
How is gene therapy done?
Isolate defective gene cells in a dish that are then genetically corrected from culture.
Take a normal egg cell and take out that nucleus.
Place the genetically corrected egg cell nucleus into the normal egg cell, now with no nucleus.
Now you have a genetically corrected egg cell, which will prevent the genetic disorder
Explain Gene Reproductive Therapy.
Gene Reproductive Therapy
prevents a genetic disorder