Overview
A test cross is a fundamental technique in genetics used to determine the genotype of an organism with an unknown genetic makeup. By crossing this organism with a homozygous recessive individual, scientists can analyze the offspring's traits to infer the unknown genotype. This method is crucial for ...
Key Terms
Example: A plant with genotype Aa has one dominant and one recessive allele.
Example: The phenotype of a flower can be red or white.
Example: AA or aa are homozygous genotypes.
Example: Aa is a heterozygous genotype.
Example: The gene for flower color has alleles for red and white.
Example: Mendel's pea plant experiments demonstrated Mendelian inheritance.
Related Topics
Mendelian Genetics
Study of how traits are inherited through generations based on Mendel's laws.
intermediateGenetic Variation
Understanding how genetic differences arise within populations.
intermediateQuantitative Genetics
Study of traits that are influenced by multiple genes and environmental factors.
advancedKey Concepts
genotypephenotypehomozygousheterozygous