Randomized 2.0

Question 1

What is deletion?

Answer 1

In genetics, a deletion (also called gene deletion, deficiency, or deletion mutation) is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is left out during DNA replication.

Question 2

What is polyploidy?

Answer 2

Polyploidy is a condition in which the cells of an organism have more than two paired (homologous) sets of chromosomes (e.g. peanuts, apples, bananas, and salmon).

Question 3

What is trisomy 21?

Answer 3

Trisomy 21, otherwise called Down syndrome, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

Question 4

What is synapsis?

Answer 4

Synapsis is the pairing of two homologous chromosomes that occurs during meiosis.

Question 5

What is philadelphia chromosome?

Answer 5

The Philadelphia chromosome or Philadelphia translocation (Ph) is a specific genetic abnormality in chromosome 22 of leukemia cancer cells (particularly chronic myeloid leukemia (CML) cells). The Philadelphia chromosome is present in the blood cells of 90 percent of people with chronic myelogenous leukemia.