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Genetics Vocabulary

Published on Mar 14, 2021

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PRESENTATION OUTLINE

1.

Gene

  • is a specific region of a chromosome
2.

Alleles

  • are the different possibilites of traits
Photo by Servier Medical Art
3.

Phenotype

  • how a trait appears or is expressed
4.

Genotype

  • the combination of alleles that control the phenotype
5.

Homozygous

  • Two of the same letter case (alleles)
6.

Homozygous Dominant

  • when both traits are dominant, or upper case
7.

Homozygous Recessive

  • when both traits are recessive, or lower case
8.

Heterozygous

  • when agenotype has one upper case and one lower case letter
  • One recessive and one dominant trait
9.

Incomplete Dominance

  • relationship when the two different traits blend together
10.

Codominance

  • relationship when the organism has a heterozygous genotype and both traits show up

Stephanie Niswonger