Chromosome Structure, Composition & Location

Structure of chromosomes revealed

Chromosomes: The Gene Carriers of a Cell

Relationships Between DNA, Genes, And Chromosomes

What is a Chromosome? Simple definitions for understanding human genetics - Famlii

How Many Chromosomes Are In A Normal Human Cell? - Genomes Unzipped

Family shares their journey through Chromosome 18 abnormality

Human Karyotype Overview, Disorders & Examples

SOLVED:Comparatively few human genetic disorders are caused by chromosomal abnormalities. One reason is that a. most chromosomal abnormalities have little effect. b. it is difficult to detect changes in the number or length of chromosomes. c. most chromosomal abnormalities result in spontaneous abortion of the embryo. d. it is not possible to change the length or number of chromosomes.