Genetic Terms and Definitions - Edubirdie

University:
Massachusetts Institute of Technology
Course:
7.01SC | Fundamentals of Biology
Academic year:

2019
Views:

474

Pages:

1
Author:

nutritiv0t

Terms and Definitions: Gene: Discrete particle/factor (gene) of inheritance. A segment of DNA encoding a protein. Chromosome: A very long piece of double-stranded DNA. Many different genes are found on each chromosome. Locus or loci: A particular place or location along a chromosome. Can be a gene or other DNA sequence. Allele: Alternative forms of gene Genotype: The combination of alleles that an individual has Phenotype: A trait or appearance Heterozygote: Individual with different alleles Homozygote Individual with same alleles Pure-breeding: An individual or strain that is homozygous for a particular gene. Dominant versus recessive: Please note that these terms should be applied only to phenotypes, not to alleles! Phenotype 1 is dominant to phenotype 2 if the heterozygote has phenotype 1.

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