Upstream promoter elements in eukaryotes are:a
nucleotide sequences that act as binding sites for RNA polymerase.
b. nucleotide sequences that regulate the efficiency of transcription initiation.
c. nucleotide sequences that contain the TATA box.
d. proteins that enhance RNA polymerase binding to the promoter.
e. proteins that inhibit RNA polymerase binding to the promoter.
B
You might also like to view...
[NeedAttention]
src="data:image/png;base64,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
How do cells distinguish between estrogen and testosterone?
a. only male cells respond to testosterone and female cells respond to estrogen b. estrogen is hydrophilic and binds to surface receptors, while testosterone is hydrophobic and binds to internal receptors c. estrogen and testosterone have similar functional groups but different basic structures that are easily distinguished by their individual receptors d. estrogen and testosterone have the same basic structures, but different side chains that are easily distinguished by their individual receptors e. estrogen and testosterone bind to different carrier proteins, which help receptors distinguish between the two molecules
The molecule shown above is ____
a. a triglyceride b. an amino acid c. a steroid d. a polysaccharide e. a phospholipid
Sexual reproduction includes
A. mitosis gamete formation, and fertilization. B. mitosis, meiosis, and gamete formation. C. meiosis, gamete formation, and fertilization. D. mitosis, fertilization, and meiosis. E. None of the answers are correct.