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Genetic Engineering
Questions about the manipulation of an organisms genes in order to alter the morphological or chemical traits of the organism.
1,707 Questions
How does probability relate to the punnet square?
A Punnet square is a way of representing the possible combinations of genotypes in an offspring of two parents with differing genes. It is used to determine the probability that the offspring has a particular genotype.
What are arguments fo and against the quagga project?
While the project is progressing well, there are still those who have certain reservations or are outright against the project.
It has been argued that there might have been other non-morphological, genetically-coded features (such as habitat adaptations) unique to the Quagga and that therefore, any animal produced by a selective breeding programme would not be a genuine Quagga. Since there is no direct evidence for such characters and since it would be impossible now to demonstrate such characters were they to exist, the argument is spurious. The definition of the Quagga can only rest on its well-described morphological characteristics and, if an animal is obtained that possesses these characters, then by definition, it will be a Quagga.
The genetic basis of the Quagga Breeding Project, relies on the demonstration by Higuchi et al (1987) (Mitochondrial DNA of the Extinct Quagga: Relatedness and Extent of Postmortem Change. Journel of Molecular Evolution 25:283-287) that the mitochondrial DNA of the Quagga is identical to that of other Plains Zebras. Therefore the Quagga and other Plains Zebras belong to the same species and consequently the Quagga should be considered merely a different population (or deme), of the Plains Zebra.
The only characters that have been used to identify the Quagga are its coat-pattern characters. Therefore if, within a few generations of selective breeding, an animal demonstrating these characters is obtained, it can with full justification be claimed to be a Quagga, since it would possess the same assemblage of coat-pattern genes as the original Quagga. It would not be a "look-alike".
Futhermore, since the indigenous grasses in the original habitat of the Quagga are not significantly different from those areas occupied by extant Plains Zebras, and since extant Plains Zebras occupy habitats of similar degree of aridity to those of the Quagga, there is no sound reason for proposing significant adaptive features of the Quagga to its original habitat, and no reason to believe that animals produced in the selective breeding programme would not survive successfully in the region formerly occupied by the Quagga.
What is the most common fatal genetic disease in the United states?
cystic fibrosis (:
cystic fibrosis :)
cystic fibrosis ^-^
Did Norman Borlaug start the Green Revolution?
Norman Borlaug is widely credited as the "Father of the Green Revolution." It is estimated that his breakthrough advancements in agronomy saved upwards of one billion lives. For his efforts, he was presented the Nobel Peace Prize in 1970. He is one of only five people in all of history to receive the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Medal. More can be found at http://www.worldfoodprize.org/about/borlaug.htm Norman Borlaug is widely credited as the "Father of the Green Revolution." It is estimated that his breakthrough advancements in agronomy saved upwards of one billion lives. For his efforts, he was presented the Nobel Peace Prize in 1970. He is one of only five people in all of history to receive the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Medal. More can be found at http://www.worldfoodprize.org/about/borlaug.htm
Why are chromosomal translocations often not a problem?
Because if the same amount of genetic material is present, then the individual has all the correct material for normal development. In this case it is called a "balanced translocation" or BT. If there is extra genetic material (duplications) or of some of it is missing (deletions) then the individual most often has problems relating to physical and/or mental development. This is known as an "unbalanced translocation" or UBT. Duplications and deletions of genetic material also often result in miscarriage of the embryo. If the embryo survives, it very often has severe complications. So in cases of repeated miscarriage, it is important for the parents be be tested for possible chromosome issues.
Prenatal detection of chromosomal abnormalities is accomplished chiefly by?
Prenatal diagnosis of a chromosome abnormality is only possible currently through two procedures: Chorionic Villus Sampling (CVS) and Amniocentesis. Both procedures are capable of diagnosing chromosome abnormalities, however they differ in several key ways including timing during the pregnancy and the type of specimen used to make the diagnosis. To find out which is most appropriate for you, please contact your primary care doctor or obstetrician.
Gregor Mendel was an Australian Monk who was metuculus about his pea plants and founded the primary principles of genetics today.
genetic profiling means a systematic profile which stores total genetic information of an organism including gene squence
How does a genetic blood test diagnose narcolepsy?
A genetic blood test can reveal the existence of certain substances in people who have a tendency to develop narcolepsy. Positive test results suggest narcolepsy.
ANSWER:
Short Summary:
An enzyme is NOT a piece of DNA. DNA codes for the enzyme.
Detailed Story:
The enzymes are made by the codes of DNA. The DNA itself is not an enzyme.
Terms you should know:
mRNA: Messenger RNA, which gets copied by DNA;
tRNA: Thing(?) that holds an amino acid.
DNA: A double helix-ed strands of codes that code for protein; this always stays in the nucleus.
Nucleus: an organelle that protects DNA on plant or animal cells.
Ribosome: an organelle that helps code for amino acid.
Amino Acid: Things(?) that are used to make a protein; gets put together by a ribosome.
- First, DNA gets copied into mRNA.
- Next, the mRNA leaves the nucleus.
- Then, the mRNA is held and read by a ribosome, which gets the right tRNA to place the right amino acid in order. [clarification needed..]
- The sequence starts with "Met", which codes for beginning of protein. When the mRNA reaches the sequence "stop", the protein with full amino acid releases complete protein, which can be an enzyme.
Source(s): My School, Google
Depends on the 'perfection' of the cloning process. I myself don't know the precision of the most recent version of the process, so I don't know if they managed to fix the 'bugs' in the system.
Although I suppose it is safe to assume that clones ARE fertile, considering they share the same genetic code as the donor, providing the donor is fertile to start with.
What increases genetic variations?
A large population increases genetics variation. Mutation will also increase genetics variation.
What is a potential health problem that could arise from genetic engineering?
Sample answer: Engineered traits such as herbicide
resistance could transfer to weeds and create
"superweeds."
Mutations are a source of what in a species?
Genetic variation, which can lead to evoloution, and then potentially a new species.
Cloning isn't eaxctly new, we've been cloning for quite some time now.
Is genetic engineering painful?
yes it is because it can mess your insides up when they go inside there.they can change something and make you in capable to do things you never knew how.
What is pomato in transgenic plant?
a trangenic plant containing genes from both potato and tomato plants
