A target cell that is affected by a particular steroid hormone would be expected to have
A) an intracellular receptor protein that binds the hormone.
B) a cell-surface receptor protein that binds the hormone.
C) enzymes that are activated or inactivated by the intracellular hormone-receptor complex.
D) enzymes that are activated or inactivated by the hormone's second messenger.
Answer: A
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How does RNA polymerase II bind to the DNA?
a. It binds directly to the eukaryotic promoter sequence. b. It binds directly to the TATA box. c. It binds to transcription factors in the nucleus, and the complex then binds to the promoter. d. Transcription factors first bind to the promoter, then recruit RNA polymerase II. e. Some transcription factors bind to the promoter while others bind to RNA polymerase II, then the two groups of proteins bind to each other.
Which of the following organelles possess DNA separate from nuclear DNA that can be used to trace genealogies of humans?
a. ribosomes b. chloroplasts c. mitochondria d. lysosomes
Which connective tissue is best at withstanding compression due the elasticity of its matrix?
a. loose connective tissue b. bone tissue c. cartilage d. fibrous connective tissue e. none of these.
The result of mitosis is the production of two daughter cells that are genetically identical to each other but not to the parent cell
Indicate whether the statement is true or false