Answer:
The common element in RNA interference treatment for aids,hepatitis,and cancer include the silencing of gene expression.
Explanation:
- Through the degradation of targeted mRNA, gene silencing is done which is very popular in the eukaryotic organism and it is a highly conserved process.
- In the treatment of aids,hepatitis,and cancer, gene therapy is needed because they cannot be cured by simple consumption of drugs.
- The treatment is carried by silencing the gene expression of the particular mRNA host by utilization of RNA interference (RNAi).
Natural selection<span> acts upon two major sources of genetic variation: </span>mutations<span> and</span>recombination<span> of </span>genes<span> through sexual </span>reproduction<span>. Most </span>mutations<span> do not affect the reproductive fitness of individuals -- some may be beneficial, some may be harmful, and </span>many<span> may be neutral. </span>Mutation rates<span> per gene are generally low</span>
Soldiers were given Morphine not only to ease the pain of their injuries but also to relieve the symptoms of dysentery. Morphine is the most active substance in opium, it is a powerful painkiller that was used by many US civil war soldiers. it is during this civil war that the first major wave of Morphine addiction occurred due to continuous use.
Answer:
B
Explanation:
All animals in the food chain have a job and keep each other balanced. With out the top predator the species that are lower than the top predator will over populate and throw off the food chain.
Hope this helps :)
<span>tying shoelaces
Let's look at the available options and see what can and can't be reversed or undone.
tying shoelaces
* This is pretty simple, you can tie some shoelaces, untie them, and repeat as many times as you want. So this is a reversible physical change.
filing nails
* When you file nails, you start with one large nail and end up with a smaller nail plus a lot of "nail dust". If you wanted to reverse that process, you'd somehow have to convert that "nail dust" you created back into original nail. And that's not possible. You might be able to glue the dust back on, but that would result in a mixture of glue and nail dust, not original nail. So this is not a reversible physical process.
cracking an egg
* Once again, it's easy to crack an egg. Not so easy to then uncrack it and end up with an undamaged egg. So I wouldn't call this process reversible either.
cutting hair
* So for each hair you start out with a long piece of hair, then you cut it into 2 or more shorter lengths. You might be able to glue those pieces back together, but that wouldn't result in a piece of uncut hair, it would instead result in several pieces of hair glued together. So this process isn't reversible either.
So of the 4 available choices, only tying shoelaces is reversible.</span>
