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genetics

TermDefinition
Alleles Alternative form of a gene
Heredity offspring acquires the qualities of its parents.
Trait character is a feature of an organism.
Recessive Allele is hidden/ Not expressed
Dominant Allele is present Expressed
Phenotype Physical appearance
Genotype genetic make up
Homozygous same (TT)
Heterozygous different (Tt)
Mutation sudden change in the genetic material, therefore, mutation will be passed on to the offspring
Replication the biological process of producing two identical replicas of DNA from one original DNA molecule.
Nucleotide sugar, phosphate and a nitrogenous base
Transcription the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.
Trannslation Process by which the information coded in RNA is used to assemble a certain amino sequence.
Karyotyping photograph is taken of a cell as mitosis is occurring. The picture of the chromosomes are then enlarged, cut out and arranged in pairs. (Trisomy 21---Down's syndrome)
Codon The bases on the mRNA specifying a triplet base
Anticodon a sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.
Recombinant DNA DNA that has been formed artificially by combining constituents from different organisms.
Restriction Enzyne used to cut DNA
Genetic engineering Recombinant DNA is the joining together of DNA from two different species, which is done by a method referred to as Gene splicing,
Created by: Lavay
 

 



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