During meselson and stahl’s experiment, e. coli was grown on heavy nitrogen for what purpose?
a. so each generation of dna would have a different weight to distinguish them by.
b. so each generation of protein would have a different weight to distinguish them by.
c. to determine how the bacteria functioned with a heavier element.
d. to see how the heavy nitrogen affected their dna.

there is no stairs in bungalow

explanation:

can i have brainliest i need one

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u