PSYC 2290 Lecture Notes - Lecture 2: Twin, Artificial Insemination, Allosome

• School: University of Manitoba
• Department: Psychology
• Course: PSYC 2290
• Professor: proulx

Document Summary

Conception: fertilization: zygote, fraternal twins: 2 eggs are fertilized, 2/3 twins are fraternal, identical twins: the division of the zygote (two beings develop), identical genetic material. Fertility drugs: induces the release of an egg (you are more likely to get twins, it will release more than one egg) Artificial insemination: when there is a problem with the sperm and the egg meeting the sperm is introduced when the egg is present (maximize the change of conception), 70-80% success rate. Invitro fertilization: induce the release of an egg and take the egg out, and introduce sperm to the egg outside the body, if there is fertilization, then the fertilized eggs are put back into the body. 1/3 will result in a live birth (again, there is a higher chance of twins: they are now able to determine if the sperm will result in a female or a male birth (x or.