DNA
Double Helix
What is the basic structure of DNA?
Watson and Crick
There are this many stages in mitosis.
What is four?
This is the stage of the cell cycle where the cell spends most of its life (about 80%).
What is interphase?
This is the type of bond that holds together the two strands of DNA.
What is a hydrogen bond?
Found in the nucleus
Where is DNA located in eukaryotic cells?
Scientist who took an X-ray diffraction image of DNA?
Rosalind Franklin
This is one reason a cell may not divide.
What is a DNA error, not enough space, not enough nutrients, etc.
This is the stage of the cell cycle where DNA replication happens.
What is S phase?
This is the stage of mitosis where daughter chromosomes are pulled to opposite sides of the cell.
What is anaphase?
Adenine (A), Thymine (T), Cytosine (C), Guanine (G)
What are the four nitrogenous bases found in DNA?
Scientist who discovered the base pair rules?
Erwin Chargaff
This is the stage of the cell cycle where the cytoplasm divides.
What is cytokinesis?
This is the stage of the cell cycle where the number of organelles doubles.
What is G2?
This is the type of bond that holds together the nucleotides in a strand of DNA.
What is a covalent bond?
What is DNA replication?
Chromosomes relax back into this form of DNA by the end of cytokinesis.
What is chromatin?
During this stage of mitosis, the chromosomes line up at the equator of the cell.
What is metaphase?
If a cell with 24 chromosomes goes through mitosis, this is how many chromosomes will be in each of the daughter cells.
What is 24?
If a molecule of DNA has 20% Adenine, this is the percent of Guanine, Cytosine and Thymine? (percentage values)
Thymine (T) 20%, Guanine (G) 30%, Cytosine (C) 30%
What did Erwin Chargaff discover about DNA?
The amount of Adenine equals Thymine, and the amount of Guanine equals Cytosine
These are the stages of mitosis, in order.
What is prophase, metaphase, anaphase, and telophase?
During this stage of the cell cycle, centrioles begin to form spindle fibers.
What is prophase?
This is the organelle that holds together two sister chromatids.