Describe the function and general nature of promoters in eukaryotes
What will be an ideal response?
Promoter regions are necessary for the initiation of transcription. Promoters that interact with RNA polymerase II are usually located within 100 bp upstream of a gene and usually contain a TATA box and a CAAT box.
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Which of the following defense mechanisms are found in invertebrates?
a. phagocytes b. lysozyme c. antibodies d. phagocytes and lysozyme e. phagocytes, lysozyme, and antibodies
This class of mollusk includes snails
a. Bivalvia b. Annelida c. Gastropoda d. Pseudopoda e. Cephalopoda
Eukaryotic transcription factors:a
are always simpler than bacterial regulators. b. may be activators or repressors of transcription. c. are inducers. d. are corepressors. e. are also known as enhancers
How long have prokaryotes lived on Earth?
What will be an ideal response?