FRHD 1010 Chapter Notes - Chapter 2: Preterm Birth, Prenatal Development, Zygote

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 1010
• Professor: Susan Chuang

Document Summary

Zygote- the single cell that is formed from the fusing of two gametes, a sperm and an ovum. Dna (deoxyribonucleic acid)- this molecule that contains the chemical instructions for cells to manufacture various proteins. Chromosome- one of the 46 molecules of dna (in 23 pairs) that each cell of the human body contains and that, together, contain all the genes. Gene- a small section of a chromosome; the basic unit for the transmission of heredity. A gene consists of a string of chemicals that provide instructions for the cell to manufacture certain proteins. Gamete- a reproductive cell, that is, a sperm or an ovum that can produce a new individual if it combines with a hamete from the other sex to form a zygote. Allele- any of the possible forms in which a gene for a particular trait can occur. Genotype: an organisms entire genetic inheritance or genetic potential.