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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
Chromosomes line up along in the equator not in homologous pairs?
Metaphase. What's the difference? Whether it's IN homologous or NOT, they're both Metaphase..... Stupid worksheet. I hate you group 3. :(
Do babies inherit their blood from their fathers only?
No, a baby can get either of the parents blood type.
Genetic material must be able to?
it must be able to produce complete working proteins, have the ability to adapt to changes, to reolicate faithfully and they must allow for evolutionary change
What is the number of nuclei in a zygote?
a zygote is a fertilized egg. one that has formed by the fusion of an egg cell and a sperm cell
What is a substance that scientists can produce through genetic engineering?
Insylin has been produced through genetic engineering.
Name the two organelles in a plant cell that contains their own genetic material and ribosomes?
mitochondria and plastids
What kind of genetic material do viruses have?
The genetic material that viruses have is RNA. Viruses are unable to truly carry out the processes associated with holding their own DNA.
To ramp up the DNA into a large enough amount to work with you would use polymerase chain reaction technique. PCR. By using the enzymes found in certain extremeophiles one alternately heats and cools the DNA solution with this extremeophile polymerase included and it ramps up the amount of DNA so you have a useful bit of DNA for insertion into a cloning vector.
Can you see all genetic variation?
No. Genotype is the combination of genes present in an organism. It consists of alleles whose visible characteristics is called phenotype. An organism's phenotype is visible and not the genotype as you just can't see a person and tell what kind of genes are present in the organism.
What is an example of cell reproduction?
Cells can reproduce through two types of processes. These processes are meiosis and mitosis. An example of cell reproduction can be seen when you get a scrap or a cut that scabs over. The new skin that forms in a cell reproduction.
What chemical is the genetic material made of?
The molecule which makes up the genetic material are series of chemicals called nitrogen bases held in a long winding helix. These nitrogen bases are used like letters or characters in a simple code.
Where would you find the genetic material in a cell?
A cells nucleus, mitochondria or a chloroplast may contain the DNA.
Does random alignment of chromosomes during Meiosis produce genetic variations?
In meiosis crossing over may occur at certain points on a chromatid. Crossing over is where variation occurs in allele combination. When a Zygote is formed alleles from mother and father cross over.. this is why you may have some features resembling your father and your mother... or grandma or grandpa... etc...
There can be mutations ( messups ) in mitosis but the actual process results in no genetic variation.
AP bio
What is an example of the benefits of genetic engineering?
Genetic engineering is often used in plants (especially plants that provide humans with food) so that the food/fruit/nut/product is bigger, better, and shinier. Genetic engineering can also change the DNA so that a plant can be immune to diseases (or at least fight them) and make them more resilient to heat/drought/cold.
- A Specialized Center of Research in Lupus at the University of Virginia School of Medicine
- A Lupus Registry and Repository that researchers across the country can utilize to help identify genes that determine susceptibility to the disease
- A Neonatal Lupus Registry that researchers across the country can utilize to research data and genetic information on neonatal lupus
- Funding for The Lupus Federal Working Group-to focus on lupus research progress
- Research studies to better understand:
- Genetics-genes that are associated with susceptibility to lupus or play a role in the development of lupus
- Biomarkers-something that can be found in cells or tissues that predicts lupus flares or lupus disease process
- The lupus disease process-how it affects different organs, how it behaves in its earliest clinical manifestations
- Treatments, such as the medication rituximab, which lowers the number of white blood cells that produce antibodies
- Overcoming barriers that tend to keep some populations from complying with prescribed treatment.
Why is the aging process faster in clones?
Because if you take the genes from an older animal
And use them to create a clone of that exact animal, it would still be born from the womb as a child
However because the genes are already however many years old the newborn animals genes will be the same age so it will mature, and die faster
For example Dolly the sheep was 7 years old
Her genes were cloned into a baby lamb
This lambs genes were 7 years old so it had to catch up faster
Therefore... It aged faster
What do bacteriophage's do in genetic engineering?
To duplicate, viruses insert their genetic material into a host cell along with enzymes. The host cell's internal replication machinery is hijacked, and the cell begins producing the proteins to make new viruses.
In genetic engineering, the viral DNA is changed (through a variety of techniques) to include the altered genetic material that is intended to change or replace pieces of the host's genome. It also usually includes a "repair protein" that keeps it from killing the host cell.
Special receptors on the surface of the virus allow it to attach to the appropriate cells (for instance certain adeno-associated viruses can insert information specifically into chromosome 19), and the modified DNA is introduced via the usual method of viral reproduction. Instead of replicating new copies of the virus, the cells begin to copy the new genetic material, which then is incorporated into the host's genome.
Copy genetic material to reproduce identical Cells?
Replication-
Before a Cell divides, its DNA is replicated (duplicated.) Because the two strands of a DNA molecule have complementary base pairs, the nucleotide sequence of each strand automatically supplies the information needed to produce its partner. If the two strands of a DNA molecule are separated, each can be used as a pattern or template to produce a complementary strand. Each template and its new complement together then form a new DNA double helix, identical to the original.
Before replication can occur, the length of the DNA double helix about to be copied must be unwound. In addition, the two strands must be separated, much like the two sides of a zipper, by breaking the weak hydrogen bonds that link the paired bases. Once the DNA strands have been unwound, they must be held apart to expose the bases so that new nucleotide partners can hydrogen-bond to them.
The enzyme DNA polymerase then moves along the exposed DNA strand, joining newly arrived nucleotides into a new DNA strand that is complementary to the template.
Each Cell contains a family of more than thirty enzymes to insure the accurate replication of DNA.
Mutations in body cells can be passed on to offspring of the affected individual?
No. As long as the mutation does not occur in the reproductive cells (sperms or ovum), it will not be pass on to the offspring.
