S'mores Genetics
By: Holly.F n Faith.M
Who discovered heredity and how???
Gregory Mendel discovered heredity. He studied pea plants for his genetic trait discovery, he used peas because they grow faster allowing him to see the resaults quickly.
Contrasting terms
Dominate Alleles v. Recessive Alleles
Dominate Alleles are traits that mask, n are represented by capital letters, where as recessive alleles are traits that get masked, n are represented by lower case letters.Dominate alleles are always written first then the recessive alleles.
Heterozygous v. Homozygous
Heterozgyous are alleles that are different, n are represented with one capital letter n one lower case letter. Homozygous are alleles that are the same, n are represented as either two capital letters or two lower case letters.
Genotype v. Phenotype
Genotype are the alleles letters ( ex: Tt,tt,TT) n phenotype is what the allele letters stand for ( ex: Tt= short hair TT= long hair tt=medium hair).
Phenotype v. Genotype
This is genotype
Phenotype v. Genotype
This is phenotype. Notice the physical characteristics.
Heterozygous v. Homozygous
Simple Punnett Square and SuCh....
Punnett Square...
An example of Punnett Square is as followed: GG= small ears gg=very big ears Gg= normal ears So the resault would be that the Genotypes are 25% GG, 50% Gg, and 25% gg.The Phenotypes are 25% small ears, 50% normal ears and 25% very big ears.
Incomplete Dominance
The phenotype of heterozygous individuals that are intermediate between those of the two homozygerous.
Codominance
The phenotypes of both homozygous produced in heterozygous individuals. ( Both alleles are expressed equally)
Sex-Linked Traits
They are the characyeristics that are determined by genes on the sex chromosomes.
Multiple Alleles
Multiple alleles are an inheritance pattern in which traits are controlled by more than two alleles.