DEP 2004 Lecture Notes - Lecture 2: Mitosis, Antibody, Fetal Alcohol Spectrum Disorder
1 Sep 2016
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Document Summary
Genes: biochemical materials that regulate the development of traits. Polygenic: traits determined by several pairs of genes. Dna: takes form in a double spiral (helix) and contains all genetic information. When the cell divides, each new cell has 46 chromosomes asexual. When the cell divides, each new cell has only 23 chromosomes instead of 46. Autosomes: pairs that look alike and possess genetic information concerning the same set of traits. Homozygous: both alleles for a trait are the same. Heterozygous: each allele for the trait are different. Recessive trait: trait that isnt expressed when the gene or genes involved have been paired with dominant genes. Dominant trait: trait that is expressed (elizabeth taylor= purple eyes) Carrier: a person who carries and transmits but does not exhibit them. Multifactorial problems: problems that stem from the interaction of heredity and environmental factors.
