Please enable JavaScript.
Coggle requires JavaScript to display documents.
Biology - Coggle Diagram
Biology
Genetics
Genetic Variation
Meiosis - A process of reductive cellular replication that produces four genetically unique gametes with half the number of chromosomes
-
-
Prophase - Chromosomes are condesed and lined up with homologous pairs of chromosomes. Crossing over occurs during this stage
Crossing over - When non-sister chromatids on homologous chromosomes exchange segments of DNA, in this way, new allele combinations can be made on the maternal/paternal chrmosomes
Homologous Chromosomes - Two chromosomes inherited in a ppair, usually one from the mother and one from the father
Prophase 2 - The second cell division begins with the nucelar membrane breaking down in each of the two haploid daughter cells
Anaphase - The the homologous pairs of chromosomes are seperated and pulled to opposite ends of the cell (this is segregation)
Segregation - The speration of allel pairs during meiosis so thet they can transfer specifically to seperate gametes
-
Telophase - New nuclear membranes form around each group of chromosomes and the cell divides into two haploid daughter cells
-
Telophase 2 - New nucelar membranes form around the chromatids at each end (now called chromosomes) the two cells each divide resulting in four haploid daughter cells (gametes) that are not geneticaly identical to the original parent cell.
Mitosis - A type of cell devision that results in two daughter cells, each having the same number of and kind of chromosomes
-