ANTHRO 7 Lecture Notes - Lecture 4: Punnett Square, Meiosis, Chromosome
Document Summary
Not all genes exhibit dominance, when at a locus a dominant allele will show. Shows because recessive allele is dysfunctional in some way. Out of 1 with each choice = 50% 2 traits (color and texture) on separate chromosomes. Diploid # = 4: 1 pair with color, 1 pair with texture = 2 chromosomes = 16 possibilities. Recessive alleles > sometimes improper when not dominant. There are also environmental effects on gene expression. Interaction of multiple genes to produce a trait. Modification of gene expression are inherited with dna. Gene expression modification by other genes and non-dna elements to shape phenotype. Proteins: builds cells, digestion, blood sugar, structural proteins.
