BIOL 0130 Lecture Notes - Lecture 8: Backcrossing, Ichthyosis, Coagulation
3 Sep 2016
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Document Summary
Instructions for how to make different traits in an organism feature or a characteristic e. g. eye color, height, etc. Dna instructions are divided into segments called genes. Different chromosomes contain different genes (or sets of instructions) for traits. Trait: ear shape: small, pointy allele (e, big droopy allele (e) Trait: head shape: long thing allele (l, short allele (l) Trait body shape: small thin long straight allele (b, medium muscular and short allele (b) Trait tail: short curly allele (t, long bushy allele (t) One set of instructions, when present, overwhelmed or mask or present themselves over others. Recessive allele are masked by dominant alleles and the only time they are expressed is if both parents have have given recessive alleles represented by lower case letters. Phenotype physical expression of instructions in our dna. Genotype all the alleles the organism has or a trait these are letters that are assigned for the genotype tt or tt or tt .
