Illustration of an activator. In molecular biology, a transcription factor (TF) (or sequence-specific DNA-binding factor) is a protein that controls the rate of transcription of genetic information from DNA to messenger RNA, by binding to a specific DNA sequence. The function of TFs is to regulate—turn on and off—genes in order to make sure that … Read more
AP®︎/College Biology > Ecology > Energy flow through ecosystems Food chains & food webs How food chains and food webs represent the flow of energy and matter. Trophic levels and efficiency of energy transfer. Key points: Producers, or autotrophs, make their own organic molecules. Spring 2018 SURF posters by kccstem – Issuu Each of the … Read more
Each displacement vector is represented by an arrow, with its length proportional to the vector’s magnitude and direction as specified relative to a reference line (commonly the east-west line for horizontal problems). Here are the steps to draw the vectorr. The proportions and directions of these arrows are crucial as they accurately represent The Helpful … Read more
The two statements that describe outcomes of the Latin American revolutions are: 1. Many new nations in Latin America struggled to create a government and a stable economy. 2. James Monroe supported the independence movements and warned European nations to stay away. Can Plants See? In the Wake of a Controversial Study, the Answer’s Still … Read more
