Which hormone is inhibited by hypothalamic somatostatin and can be used to treat short stature in children?
A. insulin-like growth factor I
B. testosterone
C. estradiol
D. cortisol
E. growth hormone
E. growth hormone
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Mycorrhiza is a mutualistic relationship between ________
a. plant roots and fungi b. plant roots and bacteria c. green algae and fungi d. fungi and cyanobacteria e. cyanobacteria and zygomycetes
Mendel’s dihybrid crosses, but not his monohybrid
crosses, show that a. some genes are linked together. b. the two alleles controlling a trait are divided equally among the gametes. c. alleles for different traits are inherited independently. d. one of the pair of alleles is dominant to the other. e. the crossing of two different homozygous forms will not produce any offspring in the first generation that will look like either of the parents.
In producing an E. coli plasmid to be an expression vector, an experimenter includes genes for selectable markers and a promoter for the expression of the introduced genes. She uses a cDNA sequence to ensure the insert contains no introns
The gene inserted is transcribed, but not translated. What sequence did she omit from the plasmid?
Insulin does not enter a target cell but instead binds to a specific membrane receptor on the external surface of the membrane, thereby activating the enzyme adenylyl cyclase on the inner membrane surface:
What will be an ideal response?