Inheritance
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Gene
Allele
Phenotype
Observable traits/physical characteristic
Models
Punnett Square
Recessive
Dominant
Unit of inheritance born on partic. position of chromosome
*Small segment of DNA in a chromosome tht. codes for a polypeptide
Different forms of the same gene
Occupy same relative positions on a pair of homologous chromosomes
Influenced by genotype
genetic make-up of organism
Environment
inherited frm. parents
homozygous
heterozygous
TT
tt
Tt
2 alleles controlling trait are the same
2 alleles controlling same trait are diff.
TT
Tt
tt
Genetic diagram
