BIOL10800 Lecture Notes - Lecture 10: Vas Deferens, Luteinizing Hormone, Seminal Vesicle
Document Summary
Challenge of cell replication: assure the genetic make-up of the daughter cells is the same as parental cells. This is done by: 1st: replicating the chromosomes and then dividing them between the cells in an orderly manner. Typically described in four distinct steps followed by cytokinesis. The cell cycle is divided into segments reflecting periods of chromosomal. Prophase, metaphase, anaphase, telophase replication and cell division and longer periods when the cell is carrying out normal functions. Gametogenesis requires reduction in chromosome number from 2 pairs of each chromosome to one. 1st step is to line everyone up in pairs and send half to one side and half to the other. This is why siblings share some characteristics but can be very. Each cell contains two copies of each gene. Specific genes common in alternative forms called alleles. Genotype is the specific combination of genes present in a cell. Phenotype is the physical manifestation of genotype.