City University of New York
Brooklyn College: Genotype and Phenotype
In this informative site, you will find the definition of genotype and phenotype, an explanation of the relationship between genotype and phenotype, an example of a genetic trait, an explanation of the flow of information from DNA to...
CK-12 Foundation
Ck 12: Biology: Mendel's Laws and Genetics
[Free Registration/Login may be required to access all resource tools.] Describes genotype and phenotype, and how genes are inherited.
CK-12 Foundation
Ck 12: Life Science: Evolution Acts on the Phenotype
[Free Registration/Login may be required to access all resource tools.] Natural selection acts on the phenotype (traits or characteristics) of an individual. On the other hand, natural selection does not act on the underlying genotype...
CK-12 Foundation
Ck 12: Biology: Mendel's Laws and Genetics
[Free Registration/Login may be required to access all resource tools.] Describes genotype and phenotype, and how genes are inherited.
CK-12 Foundation
Ck 12: Biology: Probability and Inheritance
[Free Registration/Login may be required to access all resource tools.] Discusses the role of probability in inheritance.
Nature Research
Scitable: Population and Quantitative Genetics
Do you know the difference between population genetics and quantitative genetics? This webpage examines both population genetics which concentrates on frequencies of alleles and genotypes and quantitative genetics which deals with the...
Concord Consortium
Concord Consortium: Stem Resources: Meiosis
Why don't you look exactly like your brother or sister? Meiosis involves the reducing of genetic material and chromosome shuffling which results in different genetic combinations. In this activity, students will view a computer model of...
CK-12 Foundation
Ck 12: Biology: Punnett Squares
[Free Registration/Login may be required to access all resource tools.] Describes how to use a Punnett square to predict genotypes and phenotypes.
CK-12 Foundation
Ck 12: Biology: Punnett Squares
[Free Registration/Login may be required to access all resource tools.] Describes how to use a Punnett square to predict genotypes and phenotypes.
Other
Evolution: The Theory of Natural Selection (Part 1)
These pages are part of a site called Evolution that accompany a textbook by the same name. Mark Ridley is the author. This section has an advanced discussion of determining allele and genotype frequencies using the Hardy-Weinberg ratio.
Concord Consortium
Concord Consortium: Geniverse Software
A collection of virtual labs focusing on genetic activities relating to a made up dragon genome. Students explore how inheritance works by studying different cases and running breeding experiments. By changing alleles, students perform...
CK-12 Foundation
Ck 12: Life Science: Modern Genetics
[Free Registration/Login may be required to access all resource tools.] Mendel laid the foundation for modern genetics, but there were still a lot of questions he left unanswered. What exactly are the dominant and recessive factors that...
University of Arizona
University of Arizona: Monohybrid Problem Set
This site, which is provided for by the University of Arizona, gives problems online that correspond to basic Mendelian genetics. Test your knowledge once you've read about Mendel and accessed the links to the various subjects covered in...
ClassFlow
Class Flow: Using a Punnett Square
[Free Registration/Login Required] This flipchart show students how to use a Punnett Square to introduce how homozygous and heterozygous genotypes are inherited and how they determine phenotypes.
ClassFlow
Class Flow: Punnett Squares
[Free Registration/Login Required] Students will use Punnett Squares to analyze how biological traits are passed on to successive generations.
University of Utah
University of Utah: Learning Center: Learn Genetics:the Outcome of Mutation
Mutation is a process that changes a DNA sequence. But how does a difference in a gene's DNA sequence (or genotype) lead to a difference in an observable trait (or phenotype)?
TeachEngineering
Teach Engineering: Dna Build
Students reinforce their knowledge that DNA is the genetic material for all living things by modeling it using toothpicks and gumdrops that represent the four biochemicals (adenine, thiamine, guanine, and cytosine) that pair with each...
Texas Instruments
Texas Instruments: Genetic Probably
Activity Overview Use the SciTools App to simulate a Punnett square. Make predictions about genetic crosses. Learn about the following concepts; genes, alleles, dominant alleles, recessive alleles, homozygous individuals, heterozygous...