BIOL 1010 Lecture Notes - Lecture 1: Mitosis, Endometrium, Fetus
Document Summary
Purpose: sexual reproduction increases the genetic make up of individuals, in turn helps the long term survival of the species. Increases genetic variability (we watched a video) Sex is the defense to keep moving forward and evolving and adapting. Gonads: testis in males, ovaries in females. Gametes: sperm in males, eggs in females. Sex cell genetics: 23 chromosomes after a process called meiosis. The eggs have 23 chromosomes, sperm has 23 chromosomes. When the egg and sperm come together and form a baby, the baby gets both of the 23 chromosomes and has 46 chromosomes. You either have an x chromosome or a y choromosome. 3 accessory glands or pairs of glands. Epididymis: storage of the sperm, if the sperm is not used it is reabsorbed and new sperm is made. Glands: extract material to leave the body and promote sperm viability.
