Chemotherapy is a widely used treatment method in the field of oncology, aimed at treating cancer by administering drugs that kill rapidly dividing cells.

A chromosome is a structure found in the cells of organisms that carries their genetic information.

Down syndrome is a genetic disorder characterized by a distinct physical appearance, intellectual disability, and developmental delays.

A gamete is a haploid cell that is involved in sexual reproduction.

In vitro fertilisation (IVF) is a method of assisted reproductive technology (ART) that involves the fertilisation of an egg outside the woman's body.

In vitro fertilization (IVF), also known as assisted reproductive technology (ART), is a medical procedure used to help individuals or couples who have difficulty conceiving a child.

Prenatal care, also known as antenatal care, is a type of preventive healthcare.