Flashcards in C5 DNA Deck (19)
Observed that heat-killed virulent cells could transform nonvirulent cells into virulent cells
Griffith injected ? into mice
Gave first evidence that DNA could serve as genetic material
The transforming principle was developed by ?
The nature of the transforming principle was verified by ?
How was the experiment by Avery, Macleod conducted
Fractionized S-strain cells into major macromolecules. DNA was only macromolecule that transformed R-strain.
Hershey-chase experiment was conducted using ? virus
How was Hershey-chase experiment conducted?
DNA of virus was fluorescently labeled with one color, and protein with another. Allowed virus to infect E. Coli. DNA only present in infected bacteria.
typical size of cell
typical size of nucleus
Does chromosome number have an effect on organism complexity?
the most densely packaged region of chromosomes
complex of DNA and proteins is called
DNA is initially packaged by basic proteins known as ?
Each histone condenses DNA by
DNA wraps around the histone ? times
This histone helps pack nucleosomes to make 30 nm fiber
X-activation is a result of
one x-chromosome being completely condensed into heterochromatin