Chapter 10: Sexual Reproduction and Genetics – Section 2: Mendelian Genetics

allele
alternative form that a single gene may have for a particular trait.

dominant
Mendel’s name for a specific trait that appeared in the F1 generation.

genetics
science of heredity.

genotype
an organism’s allele pairs.

heterozygous
organism with two different alleles for a specific trait.

homeozygous
regulation of an organism’s internal environment to maintain conditions needed for life.

hybrid
organism heterozygous for a specific trait.

law of independent assortment
Mendelian law stating that a random distribution of alleles occurs during the formation of gametes.

law of segregation
Mendelian law stating that two alleles for each trait separate during meiosis.

phenotype
observable characteristic that is expressed as a result of an allele pair.

recessive
Mendel’s name for a specific trait hidden or masked in the F1 generation.