IB Biology Sub-topic D2.1 Definitions
Cancer-causing mutagens
The location of crossing over that is completely random
The exchange of DNA sequences of non-sister chromatids of homologous chromosomes
Post-mitosis, a contractile ring of protein contracts to pull the plasma membrane inward, splitting the cell into two genetically identical daugther cells
A cell that contains both chromosomes in a homologous pair
A cell that contains one chromosome of the homologous pair
Paired chromosomes with the same gene sequence but potentially different alleles
The cell's active period wherein it grows, lives, and prepares for mitosis
The process by which one diploid nucleus divides to form four haploid nuclei
A process where primary tumor cells detach and travel to another body site via the bloodstream
The division of the nucleus into two genetically identical daughter nuclei
The ratio of the number of cells undergoing mitosis to the total number of visible cells
A substance capable of causing a mutation
A random change to the base sequence of a gene
The improper detachment of chromosomes during anaphase I or II
The random lining up of homologous pairs at the equator during metaphase I
The tight pairing up of homologous chromosomes
An individual that has three homologous chromosomes instead of a pair