The Meselson-Stahl experiments used 35S radioisotopes to determine the mechanism of DNA replication
Indicate whether the statement is true or false
FALSE
You might also like to view...
Which of the following would result in an increase in torque?
A. moving the site of muscle attachment further away from the joint B. moving the site of muscle attachment closer to the joint C. increasing the speed of muscle contraction D. decreasing the size of the muscle E. None of the answer options would result in an increase in torque.
Results from the study of globin variants indicate that ____
a. all amino acid substitutions cause severe phenotypic effects b. a change in a single nucleotide is sufficient to cause a genetic disorder c. extended chains of phosphorus molecules function to carry oxygen d. all of the changes in globin are due to changes in amino acid sequences e. sickle cell anemia is not primarily an inherited disease
In prokaryotes, the genes for metabolic pathways are ____
a. always expressed for early steps in the pathway, but generally not expressed for later steps in the pathway b. always expressed so the bacteria can respond to rapidly to changing conditions c. turned on and off as conditions change d. always independently regulated e. generally expressed at low levels, but expressed at high levels when conditions warrant
During bacterial conjugation, bacterial DNA with different alleles get together. What is the name of the long tubular structure that bacteria use to obtain differing alleles?
a. the sex pilus b. the metabolic pilus c. the flagellum d. the asexual pilus