Which of the following accurately describes transcriptional control of gene expression in eukaryotes?
a. Activators trigger sequences of DNA transcription factors to be expressed
b. Dependent on interactions of mRNA sequences with ribosomes
c. Promoters help transcription factors bind to RNA polymerases
d. Transcription factors help RNA polymerase bind to promoter sequences
Answer: d. Transcription factors help RNA polymerase bind to promoter sequences
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In a nucleotide, the pho'sphate is attached to the ____________ carbon of the sugar, and the base is attached to the ____________ carbon of the sugar
A. 1'; 5' B. 2'; 3' C. 3'; 5' D. 5'; 1' E. 5'; 3'
Animals most likely evolved most recently from ____
a. colonial protists b. fungi c. amoebozoans d. algae e. cyanobacteria
The type of exercise that creates new blood vessels and makes the heart pump more efficiently is ________
Fill in the blank(s) with correct word
Do plants have defense mechanisms?
a. Yes b. No