PS 236 Lecture Notes - Lecture 2: Fetus, Genetic Counseling, Miscarriage
Document Summary
Females: release one egg per month until they reach menopause. Males: 200,000-400,000 sperm is released in one ejaculation. 23rd pair determines gender of baby: male sperm y female sperm: x. Male bearing sperm is quicker than female bearing sperm: therefore more male babies are conceived. Male bearing sperm is fragile, spontaneous abortions sometimes occur. Female bearing sperm- stronger than male, and lasts longer. Recessive: hair and eye color: bb, bb, bb. Bb genes is dominant while bb and bb genes are recessive. Occurs when an extra y chromosome is present. Huntingtons disease: people are affected around (ages 30-50) Go through a decline in physical, emotional, and cognitive factors. Muscular distrophy: individual is typically wheel chair bound. Has a weakness in muscle: gradual lack of motion and decrease of motion and control. Advises patients about concerns of future health issues that child can get. Doctors study the biology and anatomy of humans.
