Question

According to known facts so far,

abnormalities during meiosis leading to
genetic disorders like Down syndrome are
most commonly correlated with;
increasing age of father
Osmoking habit of father
sexually transmitted diseases in parents
increasing age of mother
O exposure of mother to street drugs

Answer 1

Abnormalities during meiosis leading to Down syndrome are most commonly correlated with the increasing age of the mother.

Step-by-step explanation:

Abnormalities during meiosis leading to genetic disorders like Down syndrome are most commonly correlated with the increasing age of the mother. This is because as women age, there is a higher chance of errors occurring during the meiotic process.

During Meiosis I, which is the first division of meiosis, homologous chromosomes pair up and exchange genetic material. Errors can occur during this process, leading to the production of gametes with an abnormal number of chromosomes.

For example, in Down syndrome, there is an extra copy of chromosome 21, resulting in a total of 47 chromosomes instead of the usual 46. This extra chromosome is typically derived from the mother's egg.

Learn more about Down syndrome and meiosis