A new hormone has been isolated from an organism. Although the structure of the hormone has not yet been determined, the hormone is known to exert its effects by forming a hormone -receptor complex that acts as a transcription factor within target cells
What type of hormone
is this most likely to be?
A. a steroid hormone
B. either an amine or a peptide hormone
C. either a steroid hormone or an amine
hormone
D. either a steroid or a peptide hormone
E. a peptide hormone
A
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Panting by an overheated dog achieves cooling by _____
A) acclimatization B) torpor C) evaporation D) nonshivering thermogenesis E) shivering thermogenesis
Major classes of macromolecules present in all living microorganisms include
A) amino acids, carbohydrates, lipids, and nucleic acids. B) cell wall, cytoplasmic membrane, nucleoid, and ribosomes. C) genes, proteins, and vitamins. D) inorganic and organic compounds.
An individual has the genotype AaBbCcDdEe. How many different type of gametes can this individual make?
A) 5 B) 10 C) 25 D) 32 E) 625
Most antigens are made of
a. nucleic acids and proteins. b. alcohols and lipids. c. oligosaccharides and alcohols. d. ketones and aldehydes. e. oligosaccharides, proteins, and lipids.