PSYCH211 Chapter Notes - Chapter 3: In Vitro Fertilisation, Twin, Single-Nucleotide Polymorphism
2 Feb 2016
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Louise brown first person conceived in a lab dish test tube baby. In vitro fertilization mixing sperm and egg together in lab dish and then placing in mother. Ejaculation teaspoon of semen has 200-500 million sperm. Only few hundred sperm enter fallopian tubes. Conception occurs when sperm breaks through egg"s cellular wall. For male, sperm production begins in puberty, for females, eggs are made before. Each meiotic division results in 1 egg, while 3 die off. Ectogenesis fertilization of an egg outside uterus. Surrogate mother- carries baby throughout pregnancy not own egg. Canadian assisted human reproduction act specifies ppl may not pay for. Moral and ethic concerns- what happens to the other fertilized eggs. Males -1 chromosome smaller than other sex chromosome, smaller y. Dna codes biochemical instructions, where genes regulate the development of a. Genotype complete set of genes that make up a person"s heredity. Phenotype- genotype and environmental influences, physical, behavioural and.
