Answer:
The correct answer is delirium.
Explanation:
An unexpected variation in the brain, which leads to emotional disruption and mental confusion is known as delirium. It makes an individual difficult to remember, sleep, think, to pay attention, and several other consequences. One might experience delirium post-surgery, at the time of alcohol withdrawal, or with dementia.
However, the condition is generally impermanent and can be cured efficiently. Delirium influences the emotions, mind, sleep patterns, and control of muscles. One may find it tough to concentrate or feel confused regarding his or her locations. One may also move gradually or briskly than generally, and may even encounter with mood swings.
Thus, it can be concluded that in the given case of 8 year Jed, who had undergone surgery is not able to concentrate on anything and is feeling confused due to a condition known as delirium.
Breaking cells open to release the DNA.
Separating DNA from proteins and other cellular debris.
Precipitating the DNA with an alcohol.
Cleaning the DNA.
Confirming the presence and quality of the DNA.
I dont enderstand, u need help about what
Answer: The DNA on the paternal copy of the chromosome will be methylated at the imprinting center, while the DNA on the maternal copy of the chromosome will not be methylated in this region.
Explanation:
Chromosomes are DNA structures associated with proteins such as histones. They are found in the nucleus of cells and contain genetic information for the development and functioning of an organism. Human beings are diploid, meaning that they possess two copies of each of the 23 chromosomes (a total of 46).
Gametes, which are sex cells such as the sperm (produced by the male) and the egg (produced by the female) that are haploid. This means that they possess only one chromosome of each pair. During fertilization, a male gamete fuses with a female gamete to generate a zygote, which will give rise to a new human being. <u>This new individual will possess half of the genetic material from its father and half from its mother. Thus having a total of 46 chromosomes, 23 from each parent</u>.
Genetic imprinting modulates gene expression by chemical modification of DNA and/or modification of chromatin structure. Often, genetic imprinting causes a gene to be expressed only on the chromosome inherited from one of the parents. One example of imprinting is DNA methylation, which is a process by which methyl groups are added to DNA. <u>Methylation modifies DNA function when found in the promoter gene, repressing gene transcription. This means that a methylated gene will not be expressed</u>, that is, it will not produce a protein encoded by that gene. So, if a region of DNA is imprinted in the sperm cell, the paternal chromosome inherited from this sperm will be methylated in the genes of the offspring. And the offspring will only express the maternal copy inherited, which will not be methylated.
