Peptide hormones such as insulin cannot pass through the plasma membrane so they bind to receptors on the target cell's surface, triggering the production of second messengers
Indicate whether the statement is true or false
TRUE
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Which of the following is an advantage of using Bt to control insects?
A. Bt does not accumulate in the soil or in nontarget animals. B. Bt is easily degraded in the natural environment. C. It is a rather new agent, being only a few years old, so insects have not had time to develop resistance. D. Two of these are useful traits for the safe use of Bt to control insects.
Four of the five answers listed below are
related to DNA profiling. Select the EXCEPTION.
a. electrophoresis b. nucleotides c. DNA polymerase d. primers e. DNA ligase
Treponema pallidum: genomic analysis of metabolism
What will be an ideal response?
For a given protein, hydrogen bonds can form between which of the following?
A.) atoms in the polypeptide backbone B.) atoms of two peptide bonds C.) atoms in two side chains D.) a side chain and water E.) all of the above F.) none of the above