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.
A substance that posses equal number of both hydrogen ions and hydroxide ions in solution is said to be neutral. They do not display properties of an acid or base solely.
The pH is said to be at around 7.
<u>W</u><u>hy does facilitated diffusion happen</u><u>:</u>
<em>~</em><em> </em><em>I</em><em>t regulates what goes in and what goes out of the cell</em>
<em> </em><em>~</em><em>T</em><em>he cell membrane is permeable to only a select few types of molecules</em><em> </em><em>and</em><em> </em><em>t</em><em>h</em><em>e molecules that are allowed to move across the cell membrane must be non-polar molecules which are small in size</em>
<u>W</u><u>hat direction the particles diffuse in</u><u>:</u>
<em>~</em><em>F</em><em>rom one side of the membrane where the substrate concentration is high to the other side of the membrane where the concentration is lower</em>
<em>~</em><em>D</em><em>iffuses across membranes down the concentration gradient</em>
<u>T</u><u>he molecules that help in this process</u><u>:</u>
<em>~</em><em>carbohydrates, amino acids, nucleosides, and ions</em>
Hope this helped you- have a good day bro cya)
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