Genetics and Heredity

Flashcards covering key concepts related to genetics, traits, and hereditary patterns discussed in the lecture.

Dominant Trait

A trait that is expressed in the phenotype even when only one allele is present.

Recessive Trait

A trait that is only expressed in the phenotype when two alleles are present.

Codominance

A form of inheritance in which both alleles contribute equally and are expressed in the phenotype.

Sex-linked Traits

Traits that are carried on the X chromosome, which can affect inheritance patterns.

Autosomes

The 22 pairs of chromosomes that determine traits not related to sex.

Genotype

The genetic makeup of an individual, represented by the alleles inherited.

Phenotype

The observable characteristics or traits of an organism, resulting from the genotype.

Gregor Mendel

The scientist known as the father of genetics, who studied inheritance in pea plants.

X chromosome

The sex chromosome that is one of the two chromosomes determining a female's sex.

Y chromosome

The sex chromosome that is one of the two chromosomes determining a male's sex.

Body Dysmorphic Disorder

A mental health disorder where a person is excessively concerned about perceived flaws in their appearance.