BIOSC-116 Lecture Notes - Lecture 8: Sister Chromatids, Dna Replication, Meiosis
Document Summary
Mitosis was for growth and development and repair the sole and only function of meiosis is to make gametes. Need to make sex cells for sexual reproduction. It"s a contribution of genetic material from 2 different people coming together to create a child. Because it is genetic information from different people the children are going to be unique. Only have 1 complete sets of 23 chromosomes. Sperm cells with 23 chromosomes and an egg cell with 23 chromosomes will come together to create a zygote. Zygote has 46 chromosomes and it"s from zygote that all your cells are created. If egg cells and sperm cells had 46 chromosomes each, a child would be born with 96 chromosomes in all of their cells and that number would double per generation. A cell can be classified as haploid or diploid depending on the number of unique sets of chromosomes it has in its nucleus. Cells with two sets are called diploid.