Explanation:
The new research carried out by NASA on mars suggets that many of the Mars' ancient channel have been carved by flowing water, were actually formed by melt water beneath glacial ice sheets. The rocks looked familiar to the rocks found on Earth in these water channels. Moreover, conglomerate rock was found near the base of the channel on Mars.
Answer:
a). At least one intron must be present in gene X.
b). At least two intron must be present in gene Y
c). It is impossible to determine whether there are any introns in gene Z.
Explanation:
Introns may be defined as the segments in the RNA molecule or the DNA molecule that does not code for proteins and they interrupts the sequences of each of the molecules.
In the context, we get :
a). In the gene X, at least one of the intron is present. Sometimes more than one introns may also be present. Due to slicing, we get one band less in the cDNA which is made from the mRNA.
b). In dene Y, at least one intron is present. Sometimes more than one introns are present inside the gene Y. In this case we get two bands less in the gene due to slicing.
c). In gene Z, it is not possible to determine the number of introns present in them. In genes X and Y, the Haelll enzyme is present in the intron. Therefore we get less of band after splicing the mRNA to cDNA.
The DNA technology that is helping in this process is the CRISPR-Cas system.
<h3>What is the CRISPR-Cas system?</h3>
The CRISPR-Cas system is a genome editing tool that has revolutionized genetic and molecular biology.
This genome editing tool can be used to insert specific sequences of DNA into a chromosome and thus generate a new cell expressing of these genes.
In conclusion, The DNA technology referred here is CRISPR-Cas system.
Learn more about CRISPR-Cas here:
brainly.com/question/22549100
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Explanation:
d.incinerators are to reducing
Soil erosion is a form of soil degradation and is referring to the displacement of the top layer of soil.Two human activities that can increase the rate of soil erosion are farming and logging. These two activities make the top layer of soil looser, resulting in the washing away of the soil by wind and water. Two natural events that can cause an increase in the rate of soil erosion are fire and earthquakes.
