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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

What does genetic engineering mean in biology?

Scientific alteration of the structure of genetic material in a living organism. It involves the production and use of recombinant DNA and has been employed to create bacteria that synthesize insulin and other human proteins.

How does genetic variation affect the type of traits of adaptations in the individuals of a species?

Variation in and of itself does not affect the traits seen in the overall population. This is because gene frequency and subsequent changes in phenotype generally occur only when the phenotype is "selected" for or against in a population. Granted increased genetic variation is the potential for change, however just as in physics potential has to be acted on for change to occur.
The population of a species represents it's entire gene pool. The Hardy-Weinburg Principle states that the frequency of a gene remains the same as long as it is neither selected for or against.
Smaller populations can change rapidly due to genetic drift and isolation (which is more of a twist of random probability than selection, like getting heads ten times in a row tossing a penny) selection translates into change in a larger population.

Where in protein synthesis does transcription occur?

In it's very earliest phase; that of the synthesis of messenger Rna.

What is Genetic stratigraphic sequence?

seismic stratigraphy defination This is the study of interpretation, description and identification of facies as well as depositional enveronment natural contniuity between vertical sequence by the use of sequence signatures. BY EZEMBU JUDE OFFOR GEOLOGY FROM EBONYI STATE UNIVERISTY email donkeri1doler@aol.com

What type of test is a ELISA?

an Enzyme Linked immunosorbent assay. during an infection an individual mounts an antibody response which eventually results in production of plasma IgG molecules that bind to various parts of the infectious agent. If these antibodies are present in the sample they will bind to the adsorbed antiagen and remain there after washing and will be detected by the ELISA technique.

How are genetically altered crops beneficial to society?

There are few to no negative effects of biotechnology on society. Apart from a few very early trials of true genetic engineering that were likely not even caused by the biotechnology, there have been practically no harm whatsoever from biotechnology on people.

What is the harmful effect of genetic engineering?

Well, the bad is that it's a fairly new area, and people aren't really certain about what might happen in the long run from what they do. Something that looks good to start with might end up doing a lot of damage.

Explain how DNA replication takes place?

An enzyme unzips a DNA stand and a separate strand without base pairs come sup and matches it with the proper ones (A-U)( C-G) making RNA which goes to a ribosome outside the nucleus, makes a protein, makes a new strand of DNA and the other strand re zips with the new DNA strand.

Can the principles of probability be used to predict exact outcomes of genetic crosses?

Probability can be used to predict possible genotypes in offspring by using a Punnett Square.

Source: The boringest and laziest science teacher: Mrs. Melissa Polimeni of Orchard Valley Middle School

-AshaParekh44

Does mutation depend on evolution?

The mutation theory is basically stating that mutation is one of the major factors that cause evolution. The mutation has to be a beneficial mutation, meaning that it has to help the survival of the organism that got the mutation. The mutation causes knew genes and diversity which can spread quickly throughout a population and eventually change the frequency of alleles (causes mutation)

Remember the mutation has to be beneficial to the survival of the organism.

Who came up with the idea of genetic engineering?

Genetic Engineering, the technique of DNA cloning was perfected by Stanley Cohen and Herbert Boyer in 1973.

Genetic engineering cannot be perfected. It likely never will be. It is an evolving science, roughly 20-30 old (when you consider the complexity of the subject).

Is it possible to create genes that function to make the body younger?

There is speculation that the ability to slow aging may occur using the CRISPR/Cas9. But use of this in humans may have ethical issues.

Here is more information:
https://www.neb.com/tools-and-resources/feature-articles/crispr-cas9-and-targeted-genome-editing-a-new-era-in-molecular-biology

What is demineralization of the bones?

Demineralization of the bones is when the bones have a lowered amount of minerals in the bone. Phosphate and Calcium is lowered in the bone and causes the person to have reduced bone strength.

Why does meiosis result in more genetic variation than mitosis?

It would be wrong to consider mitosis insignificant as it helps in cell repair and replacement in our daily life and it would be impossible to survive without it and asexual reproduction as well but if it weren't for meiosis, none of us would have been born :) Meiosis is responsible for the division for our gamete cells which leads to the formation a zygote. from there on mitosis takes over.

Where is genetic information stored and copied?

the nucleus stores all the genetic information (DNA)

Is laughter genetic?

Laughter is not genetic.Even though that people have same DNA,they cannot get laughter as a heriditary characteristics.WE cannot consider laughter as a heriditary characteristic cause theres no hormone for laughter.

Can a person be cloned?

As of today, scientists have not cloned any people. They have only cloned animals and are still trying to find the symptoms of cloning. If it is harmless, scientists may start cloning people. If it is harmful, you will not might hear about clones in this world....

What is chemical genetic engineering?

Taking a piece of DNA from one organism and putting it into another organism.

How is genetic engineering used to improve livestock?

injecting growth hormones, genetically engineered in bacteria, it goes into dairy cows, it also increases their milk production.

What part of a DNA molecule is responsible for the genetic code?

The genes present in a DNA molecule are responsible for the genetic code. Within the genes, the exons specifically are the coding regions.