DNA, RNA, and Genetic Inheritance

Genotype (or genetic makeup) refers to an organism's complete set of genes. This distinguishes it from allele (specific gene variant), chromosome (DNA structure), and phenotype (physical expression).

Humans typically have 46 chromosomes in each somatic cell, which are organized into 23 pairs. One set of 23 comes from each parent.

Chromosomes are long, threadlike structures composed of DNA and proteins that carry genetic information. They are located within the nucleus of eukaryotic cells.

Heredity is the biological process by which genetic traits are passed from parents to their offspring through reproduction.

Alleles are different versions of genes that influence various traits, including eye color, body shape, and skin color. Therefore, they contribute to all of these phenotypic characteristics.

In humans, biological sex is typically determined by the sex chromosomes. Females possess two X chromosomes (XX), while males possess one X and one Y chromosome (XY).

Scientific research suggests that blue eyes are the result of a genetic mutation that occurred in a single common ancestor, and they did not exist in humans prior to that point.

DNA is an acronym for Deoxyribonucleic Acid, which is the molecule that carries the genetic instructions for life.