As part of the transcriptional unit, regulatory sequences are the sites where RNA polymerase and transcription factors bind to regulate transcription.
Answer the following statement true (T) or false (F)
False
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For a protein to enter the endoplasmic reticulum as part of the endoplasmic reticulum's lumen or part of the endoplasmic reticulum's membrane:
a. The messenger RNA goes directly to the ER. b. A ribosome binds to the mRNA and a short stretch of protein is synthesized that contains a signal sequence. c. Ribosomes at the endoplasmic reticulum bind to the protein d. Is a random event and one day the protein could go to the ER and on another day the same protein could associate with a free polyribosome. e. None of the above.
Darwin's finches illustrate evolution by speciation
Indicate whether the statement is true or false.
Persons with heartburn may have problems with their
a. pyloric sphincter. b. bursa of Fabricius. c. cardiac sphincter. d. Peyer's patches. e. choane.
Acts to protect Canadian geese were put into effect in the ____
a. 1700s b. 1800s c. early 1900s d. late 1900s e. 2000s