During the first moments of the big bang when elements could be created, nuclear fusion reactions made few heavy elements because
a. all heavy nuclei are unstable.
b. no stable nuclei exist with masses of 5 or 8 hydrogen masses.
c. the helium nucleus is unstable.
d. the temperature and density were too low.
e. no nuclei heavier than helium could form since there weren't any electrons formed.
Question 2
Synchrotron radiation occurs when high-speed electrons move through a magnetic field.
a. True
b. False
Indicate whether the statement is true or false
Barbara McClintock, who discovered transposable elements.
Reactions 1 through 4 are necessary for the formation of each peptide bond.
Common sequence features in integrated retroviruses and other eukaryotic transposable elements
France has produced most of its energy from nuclear power since the oil crisis of the 1970s
Metabolic Reactions
DNA sequencing reactions