Many transcriptional activators are proteins with a DNA -binding domain (DBD) and an activation domain (AD). a. True
b. False

True

Explanation:

Transcriptional activators are proteins that contain domains and/or motifs that bind to DNA in order to induce transcription of specific nearby genes. In general, transcriptional activators enhance the binding with the RNA polymerase complex in order to start transcription. The DNA-binding domains (DBDs) are protein domains that enable a transcriptional activator the binding with enhancers or promoter-proximal elements. Some examples of DBDs include the zinc finger domain, helix-turn-helix domain, leucine zipper domain, etc. On the other hand, the activation domains (ADs) such as, for example, C-terminal activation domains, enable the interaction of the transcriptional activator with coactivators during the formation of the preinitiation complex, thereby transmitting the activating signal to the transcription machinery.

children tend to take more after their grandparents more than their parents. it’s the dna you received that was passed down to you somewhere in your family. maybe one of your grandparents had/has straight hair and you might have gotten it from them.