Question

Due to non-disjunction, a gamete receives two copies of chromosome number 13. When this gamete fertilizes a normal gamete, the resulting child will suffer from _______ of chromosome 13.

nullisomy

monosomy

diplosomy

trisomy

​

Answer 1

Answer:

Trisomy is the right answer..

Answer 2

Inherited disorders can arise when chromosomes behave abnormally during meiosis. Chromosome disorders can be divided into two categories: abnormalities in chromosome number and chromosome structural rearrangements. Because even small segments of chromosomes can span many genes, chromosomal disorders are characteristically dramatic and often fatal.

Disorders in Chromosome Number

The isolation and microscopic observation of chromosomes forms the basis of cytogenetics and is the primary method by which clinicians detect chromosomal abnormalities in humans. A karyotype is the number and appearance of chromosomes, including their length, banding pattern, and centromere position. To obtain a view of an individual’s karyotype, cytologists photograph the chromosomes and then cut and paste each chromosome into a chart, or karyogram (