D. An expensive instrument is shared by scientists at a university describes the benefit of membership in a research community
Explanation:
A membership in a research community like university research group is a huge benefit for the researcher.
One of the main advantage is sharing of expensive equipment among the members. The university will be equipped with most of the latest equipment necessary to conduct research like supercomputers, latest imaging equipment, manufacturing units, etc which would otherwise be inaccessible to an individual researcher. The researcher can utilize this huge benefit to conduct various experiments needed for his/her research.
These memberships provides a lot of opportunities to interact with fellow researchers, scientists etc, it provides a platform to showcase each one's research, to discuss various merits and demerits of the research, and to know about other valuable information shared by others.
Explanation:
Differentiation in cells occurs due to the silencing of some genes in the DNA of the cell while leaving others open to RNA polymerase enzymes.
Silencing occurs through the mediation of histones that tightly coil up DNA into heterochromatin in some regions. This way the genes in these regions are inaccessible to transcription enzymes and proteins and cannot be expressed. This means that proteins associated with these genes are not produced.
The open genes, on the other hand, in the euchromatin region, produce the necessary proteins that are associated with the determined function of the cell.
An example is that while the hepatocytes cells and brain cells of the same person have the same DNA, the genes for producing bile are silenced in the brain cells (and are open in hepatocytes) while genes responsible for producing neurotransmitters are silenced in hepatocytes but open in brain cells.
Learn More:
For more on gene silencing check out;
brainly.com/question/12777212
brainly.com/question/4768354
brainly.com/question/10225586
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Once they understood the structure of DNA a lot of things became more clear including how DNA was replicated.
So I think your answer is copies? meaning how it is copied (replicated).
The structure also led later on to how it was transcribed into mRNA (and eventually into proteins by ribosomes).
Answer:
A. Proteins, Carbohydrates, or fats
Explanation:
There are essential nutrients for life in which we can include carbohydrates, fats, proteins, minerals, vitamins, fiber, and water. The main nutrients we use for energy are carbohydrates, fats, and proteins. This is because they contain calories in them and the calories are what our body needs to create energy.
Our bodies, like a car, need fuel to function. The fuel we need comes from food. The food has energy stored in it so whenever we eat food, that stored energy is transferred to us. This food act as fuel for the cells in our body so they can carry all the metabolic processes and give us the energy to move, run, think, talk, digest and all of the biological processes we need to survive.
