Aneuploidy is a condition whereby cells are missing a chromosome or have an extra chromosome. This occurs because of the process of chromosomes NOT separating called _____non-disjunction_________.
The nuclear division process which contributes to the formation of two diploid cells is called _____mitosis________.
The nuclear division process which contributes to the formation of four haploid gamete daughter cells is called___meiosis______.
Mitosis is a karyokinesis process which in humans occurs primarily in __somatic____ cells (biological term for non-gamete tissue cell).
During Interphase 1 of meiosis, similar chromosomes line up together. When they do this they are called ____homologous________ pairs.
Gametes in humans contain half the number of cells compared to somatic cells and therefore they are classified as being ___haploid______ cells.
The sperm and the egg are haploid cells and in general they are called ___gametes/sex cells__.
Trisomy 21 or Down’s syndrome occurs during a nondisjunction event which results in gametes with ___three_____ copies of the same chromosome (answer is a number).
When homologous pairs of chromosomes exchange parts during meiosis this is called ___crossing___ ___over______ (2 words).
The diploid pre-egg or pre-sperm cell which undergoes meiosis was originally created by the karyokinesis process called____mitosis______