Stages of Cell Cycle
Replication of DNA, duplication of chromosomes which prevents abnormalities
What is Synthesis?
chromosomes become attached to the spindle fibers.
What is Metaphase?
synthesizes DNA and creates two identical DNA strands from a single original DNA molecule
What is DNA polymerase?
X-ray crystallographer who was the first to take an x-ray of the Double helix. Not awarded, but deserves Nobel prize.
Who was Rosalind Franklin?
Growth and Development of cell
What is G1?
chromosomes become visible as paired chromatids and the nuclear envelope disappears.
What is Prophase?
Enzyme that seals repairs in DNA and connects Okazaki fragments
What is DNA ligase?
Molecular biologists that utilized Franklins image to represent in 3-D format, Won a nobel prize
Who were Watson and Crick?
cell preparation for division occurs, Checkpoint to make sure all parts of cell are as they should be
What is G2 Phase?
One half of a duplicated chromosome
What is a sister chromatid?
Enzyme that unwinds DNA and can change nucleic acids
What is DNA helicase?
Biochemist who discovered base pairing by labeling DNA pairs
Who was Edwin Chargaff
Cell cytoplasm divides, makes 2 daughter cells
What is Cytokenssis?
chromosomes move away from one another to opposite poles of the spindle.
What is Anaphase?
Protein that repairs and recombination; help to form the central nucleoprotein complex substrate for DNA replication
What is an SSB?
Infected rats with bacteria and discovered inheritance from bacteria, and the sharing of proteins
What did Griffith do?
Phase that includes G1, S, and G2, longest phase of them all.
What is Interphase?
chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.
What is telophase?
enzyme that participate in the overwinding or underwinding of DNA,
What is DNA topoisomerases?
Biochemists that used 3-D model of DNA to identify semi-conservative replication.
Who were Meselson and Stahl?