Mendel
Mendel
Gregor Mendel is often called the father of genetics, the study of inheritance.
Learning Objective: Explain Mendel’s principles of inheritance, including examples of these principles expressed in organisms.
Gregor Mendel observed, experimented, and analyzed data. His laws provided an accurate description of some forms of inheritance, laying the groundwork for future advancements. It took almost a century for other researchers to develop an explanation, or theory, for what Mendel was describing.
Law: Description of a natural phenomenon supported by a body of knowledge.
Theory: Explanation of a natural phenomenon supported by a body of knowledge.
This video provides an overview of Mendel and his work.
Watch this video; you can select the closed captioning “cc” option if you would like to see the text.
Key Terminology
Gene: the part of DNA that codes for a protein
Allele (or factor): version of a gene
Dominant: this allele’s protein is produced
Recessive: when the dominant allele is present, the recessive allele’s protein is not produced
Genotype: the combination of alleles (factors) in an organism
Phenotype: the observable traits
The next section introduces Punnett Squares; tools used to organize inheritance data and predict offspring genotypes and phenotypes.
Check your knowledge – Mendel
Review your notes. Can you tell a short story about Mendel’s life and work? If so, move forward to the next page.
Learning Objective:
Explain Mendel’s principles of inheritance, including examples of these principles expressed in animals.
Go back to the Data Analysis Page
Go forward to the Punnett Squares Page
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