Answer:
transcription requires a specific combination of transcription factors
Explanation:
Combinatorial control refers to a regulatory mechanism in eukaryotic transcription that involves several transcriptional factors. Simply saying, in eukaryotes, expression of a gene is controlled by specific combinations of transcriptional factors. This also means that one factor can be involved in regulation of two distinct genes but in combination with different other factors.
Combinatorial control is one of the examples which shows the complexity of gene regulation in eukaryotes over the prokaryotes.
Where's the evolution?
The physics of light affects not just how blue water looks to us, but how the animals living in the world's oceans, lakes, and rivers are able to find food and each other — and this, in turn, can impact their evolution. Natural selection favors traits that perform well in local environmental conditions. Many fish species, for example, have evolved vision that is specifically tuned to see well in the sort of light available where they live. But even beyond simple adaptation, the physics of light can lead to speciation. In fact, biologists recently demonstrated that the light penetrating to different depths of Africa's Lake Victoria seems to have played a role in promoting a massive evolutionary radiation. More than 500 species of often brightly colored cichlid fish have evolved there in just a few hundred thousand years!
I think the answer is: orogenisis
Good luck! XD
Both ribosomes and the endoplasmic reticulum are found in the cell and are both organelles. The ribosomes make protein for the cell while the ER functions as a manufacturing and packaging system. Hope this helps! Good Luck on whatever you are doing!
