FRHD 2100 Chapter Notes - Chapter 10: Intracytoplasmic Sperm Injection, Zona Pellucida, Aids

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 2100
• Professor: Tuuli Kukkonen

Document Summary

Conception the union of sperm and ovum ova=x chromosome and sperm= x or y. Half of which are in the wrong tube. Only 2000 end up in the correct tube. Fewer make it to the last 5 cm due to the current from the cilia: ova secrete chemical that attracts sperms which have scent receptors fertilization normally occurs in a fallopian tube. Once 1 sperm penetrates, the layer thickens to keep out the rest of the spersm. conception occurs as the sperm and ovum combine to form 23 new pairs, which carry genetic instruction. Optimizing the chances of conception: ovum able to fertilize 4 to 20 hours after ovulation and sperm are most active within 48 hours after ejaculation. Specialists recommend that a couple seeking to conceive have intercourse once every day or two during ovulation week: less frequent intercourse (36-48hrs) results in a higher sperm count.