Answer:
b. A second marker in the knock-out cassette, that if inserted into the genome results in cell death when plated on selective media.
Explanation:
General recombination, also known as homologous recombination, refers to the naturally occurring process of exchange of genetic material between pairs of homologous DNA sequences. This process (homologous recombination) can be exploited by genetic engineering to insert DNA segments of interest at target genes. Moreover, a cassette is a mobile DNA segment containing almost a gene and a recombination site, which is integrated into the <em>locus</em>/<em>loci</em> of interest by homologous recombination. A cassette may contain a DNA segment called 'negative marker' which prevents growth under particular conditions, while a positive marker permits growth under certain conditions. In consequence, a second marker consisting of a drug cassette may be used as a negative marker in order to evidence its insertion by inducing cell death when they are plated in selective conditions.
DNA has three billion letters.
Answer:
Answer in Explanation
Explanation:
Before we proceed to explain the relation between the two, we need to understand what these terms are.
Acidification of the ocean simply refers to an increase in the acidic content of the ocean due to increased level of dissolved carbon iv oxide.
When we talk of climate change, we are talking about the overall and continual change of the atmospheric conditions of the Earth.
The reason why there is a climate change increase is because the atmosphere which is supposed to serve as a sink for green house gases is not serving this purpose and as such there is a retention of the green house gases such as carbon iv oxide within the sun-atmospheric level on the earth.
These green house gases such as carbon iv oxide which does not find a way out of the earth’s atmosphere will be retained in bodies within the earth crust serving as a sink for them. An example of this sink is the ocean which thus takes in the carbon iv oxide which when dissolved increases the acidic content of the ocean causing acidification
Answer:The process uses oxygen and glucose and results in carbon dioxide (CO2), water (H2O), and usable energy. Oxygen and glucose are the reactants. Reactants are the substances changed during a chemical reaction. Carbon dioxide and water are the products.
Explanation: hopefully this helps ( i learned this like two years ago )
I'm assuming that the choices are the ways urban landfills use to increase decay rate for most trash? If so, then the answer would be '<span>increase the number of aerobic bacteria'. Increasing the number of aerobic bacteria increase the decay rate for most trash.</span>
