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Genetics

The blueprint of Life is in our genes

TermDefinition
Genotype The genetic make up of an organism
Phenotype The physical appearance of an organism
Homozygous An organism that has two of the same alleles for a trait eg. TT or tt
Heterozygous An organism that has two different alleles for a trait eg. Tt
Codominance The alleles are neither dominant or recessive so a mix of both the traits are expressed. This is also called incomplete dominance.
Hybrid An organism that results from breeding of two genetically different organism example a cross between a horse and a donkey producing a mule.
Genetics The scientific study of heredity
Heredity The passing of characteristics from parent to offspring
Traits The characteristics that are passed from parents to offspring
Purebred An offspring that has many generation of the same traits.
Genes The factors that control the traits
Alleles Different forms of the genes example tallness gene is either TT or Tt
Dominant allele Allele whose trait always shows up.
Recessive allele The allele that is hidden whenever a dominant allele is present
Punnet square A square used in genetics used for calculating gene frequencies
Chromosome The thread like structure in the cell that carries hereditary information
DNA A molecule that stores genetic information
Created by: Gyan.mudaliar
 

 



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