Which of the following describes the process seen in the image above? A. The "TATA" box is used as a signal for the termination of transcription.
B. The enhancer region is upstream from the binding site of RNA polymerase, which allows transcription factors to bind and initiate transcription.
C. The enhancer region acts to loop up DNA and therefore silence gene expression.
D. The "TATA" region of the DNA is known as the promoter, which signals DNA polymerase to starting transcription.

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation