Question

Describe any two genetic disorders that involve Abnormal chromosomes. Be sure to do both identify the exact chromosomal aberration and the impact of the aberration on development.

Answer 1

1. Down syndrome is a developmental disorder caused by an extra copy of chromosome 21. Due to this abnormality, individuals have three copies of each of its genes instead of two, making it difficult for cells to properly control how much protein is made. It is typically associated with physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

2. Turner syndrome is a condition in which a female is partly or completely missing an X chromosome. Signs and symptoms vary among those affected.Typically, however, these individuals possess characteristic physical features from birth and develop menstrual periods and breasts only with hormone treatment, and are unable to have childrenwithout reproductive technology