Karyotypes, Chromosomes, and Meiosis

Front

What is a karyotype?

Back

A karyotype is a visual representation of an individual's chromosomes, arranged in pairs and organized by size and shape.

Front

What are chromosomes?

Back

Chromosomes are long, thread-like structures made of DNA and proteins that contain genetic information.

Front

What is meiosis?

Back

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes (sperm and egg cells).

Front

What is fertilization?

Back

Fertilization is the process by which a sperm cell and an egg cell unite to form a zygote.

Front

What are sister chromatids?

Back

Sister chromatids are identical copies of a chromosome, joined together at the centromere, that are formed during DNA replication.

Front

What is the difference between the X and Y chromosomes?

Back

The X chromosome is larger and contains more genes than the Y chromosome, which is smaller and carries fewer genes.

Front

What is a zygote?

Back

A zygote is the fertilized egg that results from the union of sperm and egg, marking the beginning of a new organism.

Front

What is a centromere?

Back

A centromere is the region of a chromosome where the two sister chromatids are joined together.

Front

What is homologous pairing?

Back

Homologous pairing is the process during meiosis where similar chromosomes align with each other to exchange genetic material.

Front

What is the role of meiosis in sexual reproduction?

Back

Meiosis produces gametes with half the number of chromosomes, ensuring genetic diversity and the correct chromosome number in offspring.