Question

____________ with an extra X chromosome have the genotype ____________ are are said to have ____________ syndrome. They tend to be very tall and lean and can have learning difficulties and reproductive problems, but are often typically developed otherwise.

Answer 1

Answer:

Females, XXX, poly X

Explanation:

It is also known as Trisomy X or Poly X syndrome. This occurs when there is a presence of an additional X chromosome and it is a syndrome caused by abnormal formation of an egg/sperm cell or during embryonic formation.

Females with this condition are usually than average but there is no much evident unusual physical features.

Answer 2

Answer:

Males with an additional X chromosome are said to have Klinefelter's syndrome with the XXY genotype.

Explanation:

Males with an additional X chromosome are said to have Klinefelter's syndrome with the XXY genotype. They appear to be quite tall and lean, and could have learning disabilities and problems with reproduction, but they are developed differently.

Klinefelter syndrome usually takes place when reproductive cells (eggs and sperm) are produced as a natural event. An error throughout the cell division termed nondisjunction results in an unusual set of chromosomes in a fertility cell.