PSYC 2013 Chapter Notes - Chapter 3: Testis Determining Factor, Y Chromosome, Egg Cell
Document Summary
Gamete : reproductive cells, sperm and ovum that can produce a new individual if it combines with the gamete from the other sex. Zygote : the single cell formed from a union of a sperm and ovum; contains all of a person"s genes. Deoxyribonucleic acid (dna) : chemical composition of the molecules that contain the genes, which are the chemical instructions for cells to manufacture various proteins. Chromosome : 46 molecules (23 pairs) of dna that contain all of the genes. Gene : small section of a chromosome; basic unit for the transmission of heredity. Contains chemicals that provide instructions for the cell to manufacture certain proteins. Proteins: 20+ amino acids, instructions from base pairs. Allele : variation that makes genes different from other genes for the same characteristics. Turns genes on and off; gene must be turned on for person to exhibit trait.
