Answer:
Change in chromatin structure-------Acetylation of histones facilitates transcription
Activity of transcription apparatus------Transcriptional activators increase promoter activity by interacting with the RNAPII holoenzyme
RNA processing---------Alternative splicing produces different transcripts from the same gene.
RNA interference-------A siRNA and the transcript it targets is transcribed from the same gene.
Initiation of translation-------Limited availability of initiation factors prevents translation of mRNA.
Answer:
According to the science magazine Scientific American, the sunset is reddish because, when the sun is setting, the light that reaches you has had to go through lots more atmosphere than when the sun is overhead, hence the only colour light that is not scattered away is the long wavelength light, the red.
The correct answer among the choices listed above is option A. <span>The process of transpiration is responsible for the transportation of water through the xylem. It is in the plant stem that negative pressure is exerted during this transport.</span>
Carbohydrates fuel the body and gives it energy since the simple sugars are easily broken down by the body
Answer:
There are limits on the size of structures such as cells that depend on diffusion to interact with the environment.
Explanation:
There are limits on the size of structures such as cells that depend on diffusion to interact with the environment. As cell volume increases, the area of the cell membrane does not keep relative pace. ... So the reason there are no huge cells is that therer is a limit to their size because of the surface area/volume ratio.
