The reason that some individual hormones have so many different effects is that
a. they influence gene transcription.
b. they trigger a second messenger system that produces a cascade effect.
c. there are a great many different cells in different tissues that have specific receptors for the
hormone.
d. the hormone is carried throughout the body and only a small amount is needed to produce
its effect.
e. they are polar molecules.
C
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Indicate whether the statement is true or false.
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a. antibodies against HIV b. complement against HIV c. antigens against HIV d. HIV particles themselves e. interferons against HIV
A unique feature of ________ is that they are tissue-specific
Fill in the blank with correct word.
Which genetic condition can be described as the inheritance of the heterozygous phenotype, which is expressed as an intermediate between the dominant and recessive alleles?
A) dominance B) codominance C) incomplete dominance D) epistasis