The type of chromosome abnormality that yields a long chromosome consisting of two acrocentric chromosomes is a/an Robertsonian translocation.
A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. Histones, which serve as packing proteins for the majority of eukaryotic chromosomes, work with chaperone proteins to attach to and condense the DNA molecule in order to preserve the integrity of the molecule. These chromosomes exhibit a complicated three-dimensional structure that is crucial for controlling transcription.
Under a light microscope, chromosomes are typically only discernible during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form).
Learn more about Chromosome with the help of the given link:
https://brainly.com/question/7641390
#SPJ4